81510360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{983}}^1$

素因数の和:1688

約数の個数: 64

約数和(自身を含む): 245134080

約数和(自身を除く): 163623720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 691, 983, 1382, 1966, 2073, 2764, 2949, 3455, 3932, 4146, 4915, 5528, 5898, 6910, 7864, 8292, 9830, 10365, 11796, 13820, 14745, 16584, 19660, 20730, 23592, 27640, 29490, 39320, 41460, 58980, 82920, 117960, 679253, 1358506, 2037759, 2717012, 3396265, 4075518, 5434024, 6792530, 8151036, 10188795, 13585060, 16302072, 20377590, 27170120, 40755180, 81510360]

約数ペア:

[(1, 81510360), (2, 40755180), (3, 27170120), (4, 20377590), (5, 16302072), (6, 13585060), (8, 10188795), (10, 8151036), (12, 6792530), (15, 5434024), (20, 4075518), (24, 3396265), (30, 2717012), (40, 2037759), (60, 1358506), (120, 679253), (691, 117960), (983, 82920), (1382, 58980), (1966, 41460), (2073, 39320), (2764, 29490), (2949, 27640), (3455, 23592), (3932, 20730), (4146, 19660), (4915, 16584), (5528, 14745), (5898, 13820), (6910, 11796), (7864, 10365), (8292, 9830)]