About the Number

401068720

401068719 ← → 401068721

2進数表記:10111111001111101001010110000

漢数字表記:四億百六万八千七百二十

素因数分解:

2 4 × 5 1 × 13 1 × 19 1 × 20297 1

素因数の和:20342
約数の個数: 80
約数和(自身を含む): 1057119840
約数和(自身を除く): 656051120

約数列:
[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4940, 9880, 19760, 20297, 40594, 81188, 101485, 162376, 202970, 263861, 324752, 385643, 405940, 527722, 771286, 811880, 1055444, 1319305, 1542572, 1623760, 1928215, 2110888, 2638610, 3085144, 3856430, 4221776, 5013359, 5277220, 6170288, 7712860, 10026718, 10554440, 15425720, 20053436, 21108880, 25066795, 30851440, 40106872, 50133590, 80213744, 100267180, 200534360, 401068720]

約数ペア:
[(1, 401068720), (2, 200534360), (4, 100267180), (5, 80213744), (8, 50133590), (10, 40106872), (13, 30851440), (16, 25066795), (19, 21108880), (20, 20053436), (26, 15425720), (38, 10554440), (40, 10026718), (52, 7712860), (65, 6170288), (76, 5277220), (80, 5013359), (95, 4221776), (104, 3856430), (130, 3085144), (152, 2638610), (190, 2110888), (208, 1928215), (247, 1623760), (260, 1542572), (304, 1319305), (380, 1055444), (494, 811880), (520, 771286), (760, 527722), (988, 405940), (1040, 385643), (1235, 324752), (1520, 263861), (1976, 202970), (2470, 162376), (3952, 101485), (4940, 81188), (9880, 40594), (19760, 20297)]

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