31181940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1619}}^1$

素因数の和:1741

約数の個数: 72

約数和(自身を含む): 95528160

約数和(自身を除く): 64346220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 107, 180, 214, 321, 428, 535, 642, 963, 1070, 1284, 1605, 1619, 1926, 2140, 3210, 3238, 3852, 4815, 4857, 6420, 6476, 8095, 9630, 9714, 14571, 16190, 19260, 19428, 24285, 29142, 32380, 48570, 58284, 72855, 97140, 145710, 173233, 291420, 346466, 519699, 692932, 866165, 1039398, 1559097, 1732330, 2078796, 2598495, 3118194, 3464660, 5196990, 6236388, 7795485, 10393980, 15590970, 31181940]

約数ペア:

[(1, 31181940), (2, 15590970), (3, 10393980), (4, 7795485), (5, 6236388), (6, 5196990), (9, 3464660), (10, 3118194), (12, 2598495), (15, 2078796), (18, 1732330), (20, 1559097), (30, 1039398), (36, 866165), (45, 692932), (60, 519699), (90, 346466), (107, 291420), (180, 173233), (214, 145710), (321, 97140), (428, 72855), (535, 58284), (642, 48570), (963, 32380), (1070, 29142), (1284, 24285), (1605, 19428), (1619, 19260), (1926, 16190), (2140, 14571), (3210, 9714), (3238, 9630), (3852, 8095), (4815, 6476), (4857, 6420)]