18201240

素因数分解:

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

素因数の和:926

約数の個数: 128

約数和(自身を含む): 63936000

約数和(自身を除く): 45734760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 887, 1026, 1080, 1140, 1368, 1710, 1774, 2052, 2280, 2565, 2661, 3420, 3548, 4104, 4435, 5130, 5322, 6840, 7096, 7983, 8870, 10260, 10644, 13305, 15966, 16853, 17740, 20520, 21288, 23949, 26610, 31932, 33706, 35480, 39915, 47898, 50559, 53220, 63864, 67412, 79830, 84265, 95796, 101118, 106440, 119745, 134824, 151677, 159660, 168530, 191592, 202236, 239490, 252795, 303354, 319320, 337060, 404472, 455031, 478980, 505590, 606708, 674120, 758385, 910062, 957960, 1011180, 1213416, 1516770, 1820124, 2022360, 2275155, 3033540, 3640248, 4550310, 6067080, 9100620, 18201240]

約数ペア:

[(1, 18201240), (2, 9100620), (3, 6067080), (4, 4550310), (5, 3640248), (6, 3033540), (8, 2275155), (9, 2022360), (10, 1820124), (12, 1516770), (15, 1213416), (18, 1011180), (19, 957960), (20, 910062), (24, 758385), (27, 674120), (30, 606708), (36, 505590), (38, 478980), (40, 455031), (45, 404472), (54, 337060), (57, 319320), (60, 303354), (72, 252795), (76, 239490), (90, 202236), (95, 191592), (108, 168530), (114, 159660), (120, 151677), (135, 134824), (152, 119745), (171, 106440), (180, 101118), (190, 95796), (216, 84265), (228, 79830), (270, 67412), (285, 63864), (342, 53220), (360, 50559), (380, 47898), (456, 39915), (513, 35480), (540, 33706), (570, 31932), (684, 26610), (760, 23949), (855, 21288), (887, 20520), (1026, 17740), (1080, 16853), (1140, 15966), (1368, 13305), (1710, 10644), (1774, 10260), (2052, 8870), (2280, 7983), (2565, 7096), (2661, 6840), (3420, 5322), (3548, 5130), (4104, 4435)]