17581980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{22541}}^1$

素因数の和:22566

約数の個数: 48

約数和(自身を含む): 53018784

約数和(自身を除く): 35436804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 22541, 45082, 67623, 90164, 112705, 135246, 225410, 270492, 293033, 338115, 450820, 586066, 676230, 879099, 1172132, 1352460, 1465165, 1758198, 2930330, 3516396, 4395495, 5860660, 8790990, 17581980]

約数ペア:

[(1, 17581980), (2, 8790990), (3, 5860660), (4, 4395495), (5, 3516396), (6, 2930330), (10, 1758198), (12, 1465165), (13, 1352460), (15, 1172132), (20, 879099), (26, 676230), (30, 586066), (39, 450820), (52, 338115), (60, 293033), (65, 270492), (78, 225410), (130, 135246), (156, 112705), (195, 90164), (260, 67623), (390, 45082), (780, 22541)]