About the Number

131993680

131993679 ← → 131993681

2進数表記:111110111100001000001010000

漢数字表記:一億三千百九十九万三千六百八十

素因数分解:

2 4 × 5 1 × 7 1 × 13 1 × 18131 1

素因数の和:18164
約数の個数: 80
約数和(自身を含む): 377725824
約数和(自身を除く): 245732144

約数列:
[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 18131, 36262, 72524, 90655, 126917, 145048, 181310, 235703, 253834, 290096, 362620, 471406, 507668, 634585, 725240, 942812, 1015336, 1178515, 1269170, 1450480, 1649921, 1885624, 2030672, 2357030, 2538340, 3299842, 3771248, 4714060, 5076680, 6599684, 8249605, 9428120, 10153360, 13199368, 16499210, 18856240, 26398736, 32998420, 65996840, 131993680]

約数ペア:
[(1, 131993680), (2, 65996840), (4, 32998420), (5, 26398736), (7, 18856240), (8, 16499210), (10, 13199368), (13, 10153360), (14, 9428120), (16, 8249605), (20, 6599684), (26, 5076680), (28, 4714060), (35, 3771248), (40, 3299842), (52, 2538340), (56, 2357030), (65, 2030672), (70, 1885624), (80, 1649921), (91, 1450480), (104, 1269170), (112, 1178515), (130, 1015336), (140, 942812), (182, 725240), (208, 634585), (260, 507668), (280, 471406), (364, 362620), (455, 290096), (520, 253834), (560, 235703), (728, 181310), (910, 145048), (1040, 126917), (1456, 90655), (1820, 72524), (3640, 36262), (7280, 18131)]

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