71020980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{691}}^1$

素因数の和:1277

約数の個数: 72

約数和(自身を含む): 216119904

約数和(自身を除く): 145098924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 571, 691, 1142, 1382, 1713, 2073, 2284, 2764, 2855, 3426, 3455, 4146, 5139, 5710, 6219, 6852, 6910, 8292, 8565, 10278, 10365, 11420, 12438, 13820, 17130, 20556, 20730, 24876, 25695, 31095, 34260, 41460, 51390, 62190, 102780, 124380, 394561, 789122, 1183683, 1578244, 1972805, 2367366, 3551049, 3945610, 4734732, 5918415, 7102098, 7891220, 11836830, 14204196, 17755245, 23673660, 35510490, 71020980]

約数ペア:

[(1, 71020980), (2, 35510490), (3, 23673660), (4, 17755245), (5, 14204196), (6, 11836830), (9, 7891220), (10, 7102098), (12, 5918415), (15, 4734732), (18, 3945610), (20, 3551049), (30, 2367366), (36, 1972805), (45, 1578244), (60, 1183683), (90, 789122), (180, 394561), (571, 124380), (691, 102780), (1142, 62190), (1382, 51390), (1713, 41460), (2073, 34260), (2284, 31095), (2764, 25695), (2855, 24876), (3426, 20730), (3455, 20556), (4146, 17130), (5139, 13820), (5710, 12438), (6219, 11420), (6852, 10365), (6910, 10278), (8292, 8565)]