129662320

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{18211}}^1$

素因数の和:18313

約数の個数: 40

約数和(自身を含む): 304868880

約数和(自身を除く): 175206560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 18211, 36422, 72844, 91055, 145688, 182110, 291376, 364220, 728440, 1456880, 1620779, 3241558, 6483116, 8103895, 12966232, 16207790, 25932464, 32415580, 64831160, 129662320]

約数ペア:

[(1, 129662320), (2, 64831160), (4, 32415580), (5, 25932464), (8, 16207790), (10, 12966232), (16, 8103895), (20, 6483116), (40, 3241558), (80, 1620779), (89, 1456880), (178, 728440), (356, 364220), (445, 291376), (712, 182110), (890, 145688), (1424, 91055), (1780, 72844), (3560, 36422), (7120, 18211)]