661540560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{30971}}^1$

素因数の和:31076

約数の個数: 80

約数和(自身を含む): 2073885120

約数和(自身を除く): 1412344560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 89, 120, 178, 240, 267, 356, 445, 534, 712, 890, 1068, 1335, 1424, 1780, 2136, 2670, 3560, 4272, 5340, 7120, 10680, 21360, 30971, 61942, 92913, 123884, 154855, 185826, 247768, 309710, 371652, 464565, 495536, 619420, 743304, 929130, 1238840, 1486608, 1858260, 2477680, 2756419, 3716520, 5512838, 7433040, 8269257, 11025676, 13782095, 16538514, 22051352, 27564190, 33077028, 41346285, 44102704, 55128380, 66154056, 82692570, 110256760, 132308112, 165385140, 220513520, 330770280, 661540560]

約数ペア:

[(1, 661540560), (2, 330770280), (3, 220513520), (4, 165385140), (5, 132308112), (6, 110256760), (8, 82692570), (10, 66154056), (12, 55128380), (15, 44102704), (16, 41346285), (20, 33077028), (24, 27564190), (30, 22051352), (40, 16538514), (48, 13782095), (60, 11025676), (80, 8269257), (89, 7433040), (120, 5512838), (178, 3716520), (240, 2756419), (267, 2477680), (356, 1858260), (445, 1486608), (534, 1238840), (712, 929130), (890, 743304), (1068, 619420), (1335, 495536), (1424, 464565), (1780, 371652), (2136, 309710), (2670, 247768), (3560, 185826), (4272, 154855), (5340, 123884), (7120, 92913), (10680, 61942), (21360, 30971)]