About the Number

388492080

388492079 ← → 388492081

2進数表記:10111001001111110101100110000

漢数字表記:三億八千八百四十九万二千八十

素因数分解:

2 4 × 3 1 × 5 1 × 23 1 × 70379 1

素因数の和:70418
約数の個数: 80
約数和(自身を含む): 1256705280
約数和(自身を除く): 868213200

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 5520, 70379, 140758, 211137, 281516, 351895, 422274, 563032, 703790, 844548, 1055685, 1126064, 1407580, 1618717, 1689096, 2111370, 2815160, 3237434, 3378192, 4222740, 4856151, 5630320, 6474868, 8093585, 8445480, 9712302, 12949736, 16187170, 16890960, 19424604, 24280755, 25899472, 32374340, 38849208, 48561510, 64748680, 77698416, 97123020, 129497360, 194246040, 388492080]

約数ペア:
[(1, 388492080), (2, 194246040), (3, 129497360), (4, 97123020), (5, 77698416), (6, 64748680), (8, 48561510), (10, 38849208), (12, 32374340), (15, 25899472), (16, 24280755), (20, 19424604), (23, 16890960), (24, 16187170), (30, 12949736), (40, 9712302), (46, 8445480), (48, 8093585), (60, 6474868), (69, 5630320), (80, 4856151), (92, 4222740), (115, 3378192), (120, 3237434), (138, 2815160), (184, 2111370), (230, 1689096), (240, 1618717), (276, 1407580), (345, 1126064), (368, 1055685), (460, 844548), (552, 703790), (690, 563032), (920, 422274), (1104, 351895), (1380, 281516), (1840, 211137), (2760, 140758), (5520, 70379)]

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