About the Number

31989840

31989839 ← → 31989841

2進数表記:1111010000010000001010000

漢数字表記:三千百九十八万九千八百四十

素因数分解:

2 4 × 3 1 × 5 1 × 41 1 × 3251 1

素因数の和:3308
約数の個数: 80
約数和(自身を含む): 101618496
約数和(自身を除く): 69628656

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2460, 3251, 3280, 4920, 6502, 9753, 9840, 13004, 16255, 19506, 26008, 32510, 39012, 48765, 52016, 65020, 78024, 97530, 130040, 133291, 156048, 195060, 260080, 266582, 390120, 399873, 533164, 666455, 780240, 799746, 1066328, 1332910, 1599492, 1999365, 2132656, 2665820, 3198984, 3998730, 5331640, 6397968, 7997460, 10663280, 15994920, 31989840]

約数ペア:
[(1, 31989840), (2, 15994920), (3, 10663280), (4, 7997460), (5, 6397968), (6, 5331640), (8, 3998730), (10, 3198984), (12, 2665820), (15, 2132656), (16, 1999365), (20, 1599492), (24, 1332910), (30, 1066328), (40, 799746), (41, 780240), (48, 666455), (60, 533164), (80, 399873), (82, 390120), (120, 266582), (123, 260080), (164, 195060), (205, 156048), (240, 133291), (246, 130040), (328, 97530), (410, 78024), (492, 65020), (615, 52016), (656, 48765), (820, 39012), (984, 32510), (1230, 26008), (1640, 19506), (1968, 16255), (2460, 13004), (3251, 9840), (3280, 9753), (4920, 6502)]

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