About the Number

388290480

388290479 ← → 388290481

2進数表記:10111001001001101011110110000

漢数字表記:三億八千八百二十九万四百八十

素因数分解:

2 4 × 3 1 × 5 1 × 71 1 × 22787 1

素因数の和:22874
約数の個数: 80
約数和(自身を含む): 1220707584
約数和(自身を除く): 832417104

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1420, 1704, 2130, 2840, 3408, 4260, 5680, 8520, 17040, 22787, 45574, 68361, 91148, 113935, 136722, 182296, 227870, 273444, 341805, 364592, 455740, 546888, 683610, 911480, 1093776, 1367220, 1617877, 1822960, 2734440, 3235754, 4853631, 5468880, 6471508, 8089385, 9707262, 12943016, 16178770, 19414524, 24268155, 25886032, 32357540, 38829048, 48536310, 64715080, 77658096, 97072620, 129430160, 194145240, 388290480]

約数ペア:
[(1, 388290480), (2, 194145240), (3, 129430160), (4, 97072620), (5, 77658096), (6, 64715080), (8, 48536310), (10, 38829048), (12, 32357540), (15, 25886032), (16, 24268155), (20, 19414524), (24, 16178770), (30, 12943016), (40, 9707262), (48, 8089385), (60, 6471508), (71, 5468880), (80, 4853631), (120, 3235754), (142, 2734440), (213, 1822960), (240, 1617877), (284, 1367220), (355, 1093776), (426, 911480), (568, 683610), (710, 546888), (852, 455740), (1065, 364592), (1136, 341805), (1420, 273444), (1704, 227870), (2130, 182296), (2840, 136722), (3408, 113935), (4260, 91148), (5680, 68361), (8520, 45574), (17040, 22787)]

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