81210570

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1427}}^1$

素因数の和:1715

約数の個数: 64

約数和(自身を含む): 223727616

約数和(自身を除く): 142517046

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 271, 542, 813, 1355, 1427, 1626, 1897, 2710, 2854, 3794, 4065, 4281, 5691, 7135, 8130, 8562, 9485, 9989, 11382, 14270, 18970, 19978, 21405, 28455, 29967, 42810, 49945, 56910, 59934, 99890, 149835, 299670, 386717, 773434, 1160151, 1933585, 2320302, 2707019, 3867170, 5414038, 5800755, 8121057, 11601510, 13535095, 16242114, 27070190, 40605285, 81210570]

約数ペア:

[(1, 81210570), (2, 40605285), (3, 27070190), (5, 16242114), (6, 13535095), (7, 11601510), (10, 8121057), (14, 5800755), (15, 5414038), (21, 3867170), (30, 2707019), (35, 2320302), (42, 1933585), (70, 1160151), (105, 773434), (210, 386717), (271, 299670), (542, 149835), (813, 99890), (1355, 59934), (1427, 56910), (1626, 49945), (1897, 42810), (2710, 29967), (2854, 28455), (3794, 21405), (4065, 19978), (4281, 18970), (5691, 14270), (7135, 11382), (8130, 9989), (8562, 9485)]