About the Number

128398530

128398529 ← → 128398531

2進数表記:111101001110011010011000010

漢数字表記:一億二千八百三十九万八千五百三十

素因数分解:

2 1 × 3 1 × 5 1 × 13 1 × 71 1 × 4637 1

素因数の和:4731
約数の個数: 64
約数和(自身を含む): 336607488
約数和(自身を除く): 208208958

約数列:
[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 71, 78, 130, 142, 195, 213, 355, 390, 426, 710, 923, 1065, 1846, 2130, 2769, 4615, 4637, 5538, 9230, 9274, 13845, 13911, 23185, 27690, 27822, 46370, 60281, 69555, 120562, 139110, 180843, 301405, 329227, 361686, 602810, 658454, 904215, 987681, 1646135, 1808430, 1975362, 3292270, 4279951, 4938405, 8559902, 9876810, 12839853, 21399755, 25679706, 42799510, 64199265, 128398530]

約数ペア:
[(1, 128398530), (2, 64199265), (3, 42799510), (5, 25679706), (6, 21399755), (10, 12839853), (13, 9876810), (15, 8559902), (26, 4938405), (30, 4279951), (39, 3292270), (65, 1975362), (71, 1808430), (78, 1646135), (130, 987681), (142, 904215), (195, 658454), (213, 602810), (355, 361686), (390, 329227), (426, 301405), (710, 180843), (923, 139110), (1065, 120562), (1846, 69555), (2130, 60281), (2769, 46370), (4615, 27822), (4637, 27690), (5538, 23185), (9230, 13911), (9274, 13845)]

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