31720480

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:362

約数の個数: 96

約数和(自身を含む): 83280960

約数和(自身を除く): 51560480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 67, 80, 88, 110, 134, 160, 176, 220, 268, 269, 335, 352, 440, 536, 538, 670, 737, 880, 1072, 1076, 1340, 1345, 1474, 1760, 2144, 2152, 2680, 2690, 2948, 2959, 3685, 4304, 5360, 5380, 5896, 5918, 7370, 8608, 10720, 10760, 11792, 11836, 14740, 14795, 18023, 21520, 23584, 23672, 29480, 29590, 36046, 43040, 47344, 58960, 59180, 72092, 90115, 94688, 117920, 118360, 144184, 180230, 198253, 236720, 288368, 360460, 396506, 473440, 576736, 720920, 793012, 991265, 1441840, 1586024, 1982530, 2883680, 3172048, 3965060, 6344096, 7930120, 15860240, 31720480]

約数ペア:

[(1, 31720480), (2, 15860240), (4, 7930120), (5, 6344096), (8, 3965060), (10, 3172048), (11, 2883680), (16, 1982530), (20, 1586024), (22, 1441840), (32, 991265), (40, 793012), (44, 720920), (55, 576736), (67, 473440), (80, 396506), (88, 360460), (110, 288368), (134, 236720), (160, 198253), (176, 180230), (220, 144184), (268, 118360), (269, 117920), (335, 94688), (352, 90115), (440, 72092), (536, 59180), (538, 58960), (670, 47344), (737, 43040), (880, 36046), (1072, 29590), (1076, 29480), (1340, 23672), (1345, 23584), (1474, 21520), (1760, 18023), (2144, 14795), (2152, 14740), (2680, 11836), (2690, 11792), (2948, 10760), (2959, 10720), (3685, 8608), (4304, 7370), (5360, 5918), (5380, 5896)]