About the Number

31970640

31970639 ← → 31970641

2進数表記:1111001111101010101010000

漢数字表記:三千百九十七万六百四十

素因数分解:

2 4 × 3 1 × 5 1 × 13 1 × 10247 1

素因数の和:10276
約数の個数: 80
約数和(自身を含む): 106743168
約数和(自身を除く): 74772528

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 10247, 20494, 30741, 40988, 51235, 61482, 81976, 102470, 122964, 133211, 153705, 163952, 204940, 245928, 266422, 307410, 399633, 409880, 491856, 532844, 614820, 666055, 799266, 819760, 1065688, 1229640, 1332110, 1598532, 1998165, 2131376, 2459280, 2664220, 3197064, 3996330, 5328440, 6394128, 7992660, 10656880, 15985320, 31970640]

約数ペア:
[(1, 31970640), (2, 15985320), (3, 10656880), (4, 7992660), (5, 6394128), (6, 5328440), (8, 3996330), (10, 3197064), (12, 2664220), (13, 2459280), (15, 2131376), (16, 1998165), (20, 1598532), (24, 1332110), (26, 1229640), (30, 1065688), (39, 819760), (40, 799266), (48, 666055), (52, 614820), (60, 532844), (65, 491856), (78, 409880), (80, 399633), (104, 307410), (120, 266422), (130, 245928), (156, 204940), (195, 163952), (208, 153705), (240, 133211), (260, 122964), (312, 102470), (390, 81976), (520, 61482), (624, 51235), (780, 40988), (1040, 30741), (1560, 20494), (3120, 10247)]

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