About the Number

31301640

31301639 ← → 31301641

2進数表記:1110111011010000000001000

漢数字表記:三千百三十万千六百四十

素因数分解:

2 3 × 3 4 × 5 1 × 9661 1

素因数の和:9684
約数の個数: 80
約数和(自身を含む): 105219180
約数和(自身を除く): 73917540

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 9661, 19322, 28983, 38644, 48305, 57966, 77288, 86949, 96610, 115932, 144915, 173898, 193220, 231864, 260847, 289830, 347796, 386440, 434745, 521694, 579660, 695592, 782541, 869490, 1043388, 1159320, 1304235, 1565082, 1738980, 2086776, 2608470, 3130164, 3477960, 3912705, 5216940, 6260328, 7825410, 10433880, 15650820, 31301640]

約数ペア:
[(1, 31301640), (2, 15650820), (3, 10433880), (4, 7825410), (5, 6260328), (6, 5216940), (8, 3912705), (9, 3477960), (10, 3130164), (12, 2608470), (15, 2086776), (18, 1738980), (20, 1565082), (24, 1304235), (27, 1159320), (30, 1043388), (36, 869490), (40, 782541), (45, 695592), (54, 579660), (60, 521694), (72, 434745), (81, 386440), (90, 347796), (108, 289830), (120, 260847), (135, 231864), (162, 193220), (180, 173898), (216, 144915), (270, 115932), (324, 96610), (360, 86949), (405, 77288), (540, 57966), (648, 48305), (810, 38644), (1080, 28983), (1620, 19322), (3240, 9661)]

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