12987260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 33868800

約数和(自身を除く): 20881540

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 26, 38, 44, 52, 55, 65, 76, 95, 110, 130, 143, 190, 209, 220, 239, 247, 260, 286, 380, 418, 478, 494, 572, 715, 836, 956, 988, 1045, 1195, 1235, 1430, 2090, 2390, 2470, 2629, 2717, 2860, 3107, 4180, 4541, 4780, 4940, 5258, 5434, 6214, 9082, 10516, 10868, 12428, 13145, 13585, 15535, 18164, 22705, 26290, 27170, 31070, 34177, 45410, 49951, 52580, 54340, 59033, 62140, 68354, 90820, 99902, 118066, 136708, 170885, 199804, 236132, 249755, 295165, 341770, 499510, 590330, 649363, 683540, 999020, 1180660, 1298726, 2597452, 3246815, 6493630, 12987260]

約数ペア:

[(1, 12987260), (2, 6493630), (4, 3246815), (5, 2597452), (10, 1298726), (11, 1180660), (13, 999020), (19, 683540), (20, 649363), (22, 590330), (26, 499510), (38, 341770), (44, 295165), (52, 249755), (55, 236132), (65, 199804), (76, 170885), (95, 136708), (110, 118066), (130, 99902), (143, 90820), (190, 68354), (209, 62140), (220, 59033), (239, 54340), (247, 52580), (260, 49951), (286, 45410), (380, 34177), (418, 31070), (478, 27170), (494, 26290), (572, 22705), (715, 18164), (836, 15535), (956, 13585), (988, 13145), (1045, 12428), (1195, 10868), (1235, 10516), (1430, 9082), (2090, 6214), (2390, 5434), (2470, 5258), (2629, 4940), (2717, 4780), (2860, 4541), (3107, 4180)]