81986520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:518

約数の個数: 256

約数和(自身を含む): 323481600

約数和(自身を除く): 241495080

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, 467, 532, 570, 616, 627, 660, 665, 760, 770, 798, 836, 840, 924, 934, 1045, 1064, 1140, 1155, 1254, 1320, 1330, 1401, 1463, 1540, 1596, 1672, 1848, 1868, 1995, 2090, 2280, 2310, 2335, 2508, 2660, 2802, 2926, 3080, 3135, 3192, 3269, 3736, 3990, 4180, 4389, 4620, 4670, 5016, 5137, 5320, 5604, 5852, 6270, 6538, 7005, 7315, 7980, 8360, 8778, 8873, 9240, 9340, 9807, 10274, 11208, 11704, 12540, 13076, 14010, 14630, 15411, 15960, 16345, 17556, 17746, 18680, 19614, 20548, 21945, 25080, 25685, 26152, 26619, 28020, 29260, 30822, 32690, 35112, 35492, 35959, 39228, 41096, 43890, 44365, 49035, 51370, 53238, 56040, 58520, 61644, 62111, 65380, 70984, 71918, 77055, 78456, 87780, 88730, 97603, 98070, 102740, 106476, 107877, 123288, 124222, 130760, 133095, 143836, 154110, 175560, 177460, 179795, 186333, 195206, 196140, 205480, 212952, 215754, 248444, 266190, 287672, 292809, 308220, 310555, 354920, 359590, 372666, 390412, 392280, 431508, 488015, 496888, 532380, 539385, 585618, 616440, 621110, 683221, 719180, 745332, 780824, 863016, 931665, 976030, 1064760, 1078770, 1171236, 1242220, 1366442, 1438360, 1464045, 1490664, 1863330, 1952060, 2049663, 2157540, 2342472, 2484440, 2732884, 2928090, 3416105, 3726660, 3904120, 4099326, 4315080, 5465768, 5856180, 6832210, 7453320, 8198652, 10248315, 11712360, 13664420, 16397304, 20496630, 27328840, 40993260, 81986520]

約数ペア:

[(1, 81986520), (2, 40993260), (3, 27328840), (4, 20496630), (5, 16397304), (6, 13664420), (7, 11712360), (8, 10248315), (10, 8198652), (11, 7453320), (12, 6832210), (14, 5856180), (15, 5465768), (19, 4315080), (20, 4099326), (21, 3904120), (22, 3726660), (24, 3416105), (28, 2928090), (30, 2732884), (33, 2484440), (35, 2342472), (38, 2157540), (40, 2049663), (42, 1952060), (44, 1863330), (55, 1490664), (56, 1464045), (57, 1438360), (60, 1366442), (66, 1242220), (70, 1171236), (76, 1078770), (77, 1064760), (84, 976030), (88, 931665), (95, 863016), (105, 780824), (110, 745332), (114, 719180), (120, 683221), (132, 621110), (133, 616440), (140, 585618), (152, 539385), (154, 532380), (165, 496888), (168, 488015), (190, 431508), (209, 392280), (210, 390412), (220, 372666), (228, 359590), (231, 354920), (264, 310555), (266, 308220), (280, 292809), (285, 287672), (308, 266190), (330, 248444), (380, 215754), (385, 212952), (399, 205480), (418, 196140), (420, 195206), (440, 186333), (456, 179795), (462, 177460), (467, 175560), (532, 154110), (570, 143836), (616, 133095), (627, 130760), (660, 124222), (665, 123288), (760, 107877), (770, 106476), (798, 102740), (836, 98070), (840, 97603), (924, 88730), (934, 87780), (1045, 78456), (1064, 77055), (1140, 71918), (1155, 70984), (1254, 65380), (1320, 62111), (1330, 61644), (1401, 58520), (1463, 56040), (1540, 53238), (1596, 51370), (1672, 49035), (1848, 44365), (1868, 43890), (1995, 41096), (2090, 39228), (2280, 35959), (2310, 35492), (2335, 35112), (2508, 32690), (2660, 30822), (2802, 29260), (2926, 28020), (3080, 26619), (3135, 26152), (3192, 25685), (3269, 25080), (3736, 21945), (3990, 20548), (4180, 19614), (4389, 18680), (4620, 17746), (4670, 17556), (5016, 16345), (5137, 15960), (5320, 15411), (5604, 14630), (5852, 14010), (6270, 13076), (6538, 12540), (7005, 11704), (7315, 11208), (7980, 10274), (8360, 9807), (8778, 9340), (8873, 9240)]