About the Number

640901400

640901399 ← → 640901401

2進数表記:100110001100110110000100011000

漢数字表記:六億四千九十万千四百

素因数分解:

2 3 × 3 1 × 5 2 × 47 1 × 22727 1

素因数の和:22793
約数の個数: 96
約数和(自身を含む): 2029155840
約数和(自身を除く): 1388254440

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 47, 50, 60, 75, 94, 100, 120, 141, 150, 188, 200, 235, 282, 300, 376, 470, 564, 600, 705, 940, 1128, 1175, 1410, 1880, 2350, 2820, 3525, 4700, 5640, 7050, 9400, 14100, 22727, 28200, 45454, 68181, 90908, 113635, 136362, 181816, 227270, 272724, 340905, 454540, 545448, 568175, 681810, 909080, 1068169, 1136350, 1363620, 1704525, 2136338, 2272700, 2727240, 3204507, 3409050, 4272676, 4545400, 5340845, 6409014, 6818100, 8545352, 10681690, 12818028, 13636200, 16022535, 21363380, 25636056, 26704225, 32045070, 42726760, 53408450, 64090140, 80112675, 106816900, 128180280, 160225350, 213633800, 320450700, 640901400]

約数ペア:
[(1, 640901400), (2, 320450700), (3, 213633800), (4, 160225350), (5, 128180280), (6, 106816900), (8, 80112675), (10, 64090140), (12, 53408450), (15, 42726760), (20, 32045070), (24, 26704225), (25, 25636056), (30, 21363380), (40, 16022535), (47, 13636200), (50, 12818028), (60, 10681690), (75, 8545352), (94, 6818100), (100, 6409014), (120, 5340845), (141, 4545400), (150, 4272676), (188, 3409050), (200, 3204507), (235, 2727240), (282, 2272700), (300, 2136338), (376, 1704525), (470, 1363620), (564, 1136350), (600, 1068169), (705, 909080), (940, 681810), (1128, 568175), (1175, 545448), (1410, 454540), (1880, 340905), (2350, 272724), (2820, 227270), (3525, 181816), (4700, 136362), (5640, 113635), (7050, 90908), (9400, 68181), (14100, 45454), (22727, 28200)]

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