42920620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{631}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 95558400

約数和(自身を除く): 52637780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 631, 716, 895, 1262, 1790, 2524, 3155, 3401, 3580, 6310, 6802, 11989, 12620, 13604, 17005, 23978, 34010, 47956, 59945, 68020, 112949, 119890, 225898, 239780, 451796, 564745, 1129490, 2146031, 2258980, 4292062, 8584124, 10730155, 21460310, 42920620]

約数ペア:

[(1, 42920620), (2, 21460310), (4, 10730155), (5, 8584124), (10, 4292062), (19, 2258980), (20, 2146031), (38, 1129490), (76, 564745), (95, 451796), (179, 239780), (190, 225898), (358, 119890), (380, 112949), (631, 68020), (716, 59945), (895, 47956), (1262, 34010), (1790, 23978), (2524, 17005), (3155, 13604), (3401, 12620), (3580, 11989), (6310, 6802)]