18987540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2213}}^1$

素因数の和:2249

約数の個数: 96

約数和(自身を含む): 62487936

約数和(自身を除く): 43500396

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 130, 132, 143, 156, 165, 195, 220, 260, 286, 330, 390, 429, 572, 660, 715, 780, 858, 1430, 1716, 2145, 2213, 2860, 4290, 4426, 6639, 8580, 8852, 11065, 13278, 22130, 24343, 26556, 28769, 33195, 44260, 48686, 57538, 66390, 73029, 86307, 97372, 115076, 121715, 132780, 143845, 146058, 172614, 243430, 287690, 292116, 316459, 345228, 365145, 431535, 486860, 575380, 632918, 730290, 863070, 949377, 1265836, 1460580, 1582295, 1726140, 1898754, 3164590, 3797508, 4746885, 6329180, 9493770, 18987540]

約数ペア:

[(1, 18987540), (2, 9493770), (3, 6329180), (4, 4746885), (5, 3797508), (6, 3164590), (10, 1898754), (11, 1726140), (12, 1582295), (13, 1460580), (15, 1265836), (20, 949377), (22, 863070), (26, 730290), (30, 632918), (33, 575380), (39, 486860), (44, 431535), (52, 365145), (55, 345228), (60, 316459), (65, 292116), (66, 287690), (78, 243430), (110, 172614), (130, 146058), (132, 143845), (143, 132780), (156, 121715), (165, 115076), (195, 97372), (220, 86307), (260, 73029), (286, 66390), (330, 57538), (390, 48686), (429, 44260), (572, 33195), (660, 28769), (715, 26556), (780, 24343), (858, 22130), (1430, 13278), (1716, 11065), (2145, 8852), (2213, 8580), (2860, 6639), (4290, 4426)]