81289130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{877}}^1$

素因数の和:951

約数の個数: 64

約数和(自身を含む): 169924608

約数和(自身を除く): 88635478

約数列:

[1, 2, 5, 10, 13, 23, 26, 31, 46, 62, 65, 115, 130, 155, 230, 299, 310, 403, 598, 713, 806, 877, 1426, 1495, 1754, 2015, 2990, 3565, 4030, 4385, 7130, 8770, 9269, 11401, 18538, 20171, 22802, 27187, 40342, 46345, 54374, 57005, 92690, 100855, 114010, 135935, 201710, 262223, 271870, 353431, 524446, 625301, 706862, 1250602, 1311115, 1767155, 2622230, 3126505, 3534310, 6253010, 8128913, 16257826, 40644565, 81289130]

約数ペア:

[(1, 81289130), (2, 40644565), (5, 16257826), (10, 8128913), (13, 6253010), (23, 3534310), (26, 3126505), (31, 2622230), (46, 1767155), (62, 1311115), (65, 1250602), (115, 706862), (130, 625301), (155, 524446), (230, 353431), (299, 271870), (310, 262223), (403, 201710), (598, 135935), (713, 114010), (806, 100855), (877, 92690), (1426, 57005), (1495, 54374), (1754, 46345), (2015, 40342), (2990, 27187), (3565, 22802), (4030, 20171), (4385, 18538), (7130, 11401), (8770, 9269)]