3181537840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{161009}}^1$

素因数の和:161054

約数の個数: 80

約数和(自身を含む): 8385400800

約数和(自身を除く): 5203862960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4940, 9880, 19760, 161009, 322018, 644036, 805045, 1288072, 1610090, 2093117, 2576144, 3059171, 3220180, 4186234, 6118342, 6440360, 8372468, 10465585, 12236684, 12880720, 15295855, 16744936, 20931170, 24473368, 30591710, 33489872, 39769223, 41862340, 48946736, 61183420, 79538446, 83724680, 122366840, 159076892, 167449360, 198846115, 244733680, 318153784, 397692230, 636307568, 795384460, 1590768920, 3181537840]

約数ペア:

[(1, 3181537840), (2, 1590768920), (4, 795384460), (5, 636307568), (8, 397692230), (10, 318153784), (13, 244733680), (16, 198846115), (19, 167449360), (20, 159076892), (26, 122366840), (38, 83724680), (40, 79538446), (52, 61183420), (65, 48946736), (76, 41862340), (80, 39769223), (95, 33489872), (104, 30591710), (130, 24473368), (152, 20931170), (190, 16744936), (208, 15295855), (247, 12880720), (260, 12236684), (304, 10465585), (380, 8372468), (494, 6440360), (520, 6118342), (760, 4186234), (988, 3220180), (1040, 3059171), (1235, 2576144), (1520, 2093117), (1976, 1610090), (2470, 1288072), (3952, 805045), (4940, 644036), (9880, 322018), (19760, 161009)]