155721720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{887}}^1$

素因数の和:938

約数の個数: 256

約数和(自身を含む): 613785600

約数和(自身を除く): 458063880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 19, 20, 21, 22, 24, 28, 30, 33, 35, 38, 40, 42, 44, 55, 56, 57, 60, 66, 70, 76, 77, 84, 88, 95, 105, 110, 114, 120, 132, 133, 140, 152, 154, 165, 168, 190, 209, 210, 220, 228, 231, 264, 266, 280, 285, 308, 330, 380, 385, 399, 418, 420, 440, 456, 462, 532, 570, 616, 627, 660, 665, 760, 770, 798, 836, 840, 887, 924, 1045, 1064, 1140, 1155, 1254, 1320, 1330, 1463, 1540, 1596, 1672, 1774, 1848, 1995, 2090, 2280, 2310, 2508, 2660, 2661, 2926, 3080, 3135, 3192, 3548, 3990, 4180, 4389, 4435, 4620, 5016, 5320, 5322, 5852, 6209, 6270, 7096, 7315, 7980, 8360, 8778, 8870, 9240, 9757, 10644, 11704, 12418, 12540, 13305, 14630, 15960, 16853, 17556, 17740, 18627, 19514, 21288, 21945, 24836, 25080, 26610, 29260, 29271, 31045, 33706, 35112, 35480, 37254, 39028, 43890, 48785, 49672, 50559, 53220, 58520, 58542, 62090, 67412, 68299, 74508, 78056, 84265, 87780, 93135, 97570, 101118, 106440, 117084, 117971, 124180, 134824, 136598, 146355, 149016, 168530, 175560, 185383, 186270, 195140, 202236, 204897, 234168, 235942, 248360, 252795, 273196, 292710, 337060, 341495, 353913, 370766, 372540, 390280, 404472, 409794, 471884, 505590, 546392, 556149, 585420, 589855, 674120, 682990, 707826, 741532, 745080, 819588, 926915, 943768, 1011180, 1024485, 1112298, 1170840, 1179710, 1297681, 1365980, 1415652, 1483064, 1639176, 1769565, 1853830, 2022360, 2048970, 2224596, 2359420, 2595362, 2731960, 2780745, 2831304, 3539130, 3707660, 3893043, 4097940, 4449192, 4718840, 5190724, 5561490, 6488405, 7078260, 7415320, 7786086, 8195880, 10381448, 11122980, 12976810, 14156520, 15572172, 19465215, 22245960, 25953620, 31144344, 38930430, 51907240, 77860860, 155721720]

約数ペア:

[(1, 155721720), (2, 77860860), (3, 51907240), (4, 38930430), (5, 31144344), (6, 25953620), (7, 22245960), (8, 19465215), (10, 15572172), (11, 14156520), (12, 12976810), (14, 11122980), (15, 10381448), (19, 8195880), (20, 7786086), (21, 7415320), (22, 7078260), (24, 6488405), (28, 5561490), (30, 5190724), (33, 4718840), (35, 4449192), (38, 4097940), (40, 3893043), (42, 3707660), (44, 3539130), (55, 2831304), (56, 2780745), (57, 2731960), (60, 2595362), (66, 2359420), (70, 2224596), (76, 2048970), (77, 2022360), (84, 1853830), (88, 1769565), (95, 1639176), (105, 1483064), (110, 1415652), (114, 1365980), (120, 1297681), (132, 1179710), (133, 1170840), (140, 1112298), (152, 1024485), (154, 1011180), (165, 943768), (168, 926915), (190, 819588), (209, 745080), (210, 741532), (220, 707826), (228, 682990), (231, 674120), (264, 589855), (266, 585420), (280, 556149), (285, 546392), (308, 505590), (330, 471884), (380, 409794), (385, 404472), (399, 390280), (418, 372540), (420, 370766), (440, 353913), (456, 341495), (462, 337060), (532, 292710), (570, 273196), (616, 252795), (627, 248360), (660, 235942), (665, 234168), (760, 204897), (770, 202236), (798, 195140), (836, 186270), (840, 185383), (887, 175560), (924, 168530), (1045, 149016), (1064, 146355), (1140, 136598), (1155, 134824), (1254, 124180), (1320, 117971), (1330, 117084), (1463, 106440), (1540, 101118), (1596, 97570), (1672, 93135), (1774, 87780), (1848, 84265), (1995, 78056), (2090, 74508), (2280, 68299), (2310, 67412), (2508, 62090), (2660, 58542), (2661, 58520), (2926, 53220), (3080, 50559), (3135, 49672), (3192, 48785), (3548, 43890), (3990, 39028), (4180, 37254), (4389, 35480), (4435, 35112), (4620, 33706), (5016, 31045), (5320, 29271), (5322, 29260), (5852, 26610), (6209, 25080), (6270, 24836), (7096, 21945), (7315, 21288), (7980, 19514), (8360, 18627), (8778, 17740), (8870, 17556), (9240, 16853), (9757, 15960), (10644, 14630), (11704, 13305), (12418, 12540)]