20181070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 45513216

約数和(自身を除く): 25332146

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 67, 70, 91, 130, 134, 182, 331, 335, 455, 469, 662, 670, 871, 910, 938, 1655, 1742, 2317, 2345, 3310, 4303, 4355, 4634, 4690, 6097, 8606, 8710, 11585, 12194, 21515, 22177, 23170, 30121, 30485, 43030, 44354, 60242, 60970, 110885, 150605, 155239, 221770, 288301, 301210, 310478, 576602, 776195, 1441505, 1552390, 2018107, 2883010, 4036214, 10090535, 20181070]

約数ペア:

[(1, 20181070), (2, 10090535), (5, 4036214), (7, 2883010), (10, 2018107), (13, 1552390), (14, 1441505), (26, 776195), (35, 576602), (65, 310478), (67, 301210), (70, 288301), (91, 221770), (130, 155239), (134, 150605), (182, 110885), (331, 60970), (335, 60242), (455, 44354), (469, 43030), (662, 30485), (670, 30121), (871, 23170), (910, 22177), (938, 21515), (1655, 12194), (1742, 11585), (2317, 8710), (2345, 8606), (3310, 6097), (4303, 4690), (4355, 4634)]