71835140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 166847688

約数和(自身を除く): 95012548

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 169, 212, 260, 265, 338, 401, 530, 676, 689, 802, 845, 1060, 1378, 1604, 1690, 2005, 2756, 3380, 3445, 4010, 5213, 6890, 8020, 8957, 10426, 13780, 17914, 20852, 21253, 26065, 35828, 42506, 44785, 52130, 67769, 85012, 89570, 104260, 106265, 135538, 179140, 212530, 271076, 276289, 338845, 425060, 552578, 677690, 1105156, 1355380, 1381445, 2762890, 3591757, 5525780, 7183514, 14367028, 17958785, 35917570, 71835140]

約数ペア:

[(1, 71835140), (2, 35917570), (4, 17958785), (5, 14367028), (10, 7183514), (13, 5525780), (20, 3591757), (26, 2762890), (52, 1381445), (53, 1355380), (65, 1105156), (106, 677690), (130, 552578), (169, 425060), (212, 338845), (260, 276289), (265, 271076), (338, 212530), (401, 179140), (530, 135538), (676, 106265), (689, 104260), (802, 89570), (845, 85012), (1060, 67769), (1378, 52130), (1604, 44785), (1690, 42506), (2005, 35828), (2756, 26065), (3380, 21253), (3445, 20852), (4010, 17914), (5213, 13780), (6890, 10426), (8020, 8957)]