400809200

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1283}}^1$

素因数の和:1383

約数の個数: 120

約数和(自身を含む): 1066110336

約数和(自身を除く): 665301136

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 71, 80, 88, 100, 110, 142, 176, 200, 220, 275, 284, 355, 400, 440, 550, 568, 710, 781, 880, 1100, 1136, 1283, 1420, 1562, 1775, 2200, 2566, 2840, 3124, 3550, 3905, 4400, 5132, 5680, 6248, 6415, 7100, 7810, 10264, 12496, 12830, 14113, 14200, 15620, 19525, 20528, 25660, 28226, 28400, 31240, 32075, 39050, 51320, 56452, 62480, 64150, 70565, 78100, 91093, 102640, 112904, 128300, 141130, 156200, 182186, 225808, 256600, 282260, 312400, 352825, 364372, 455465, 513200, 564520, 705650, 728744, 910930, 1002023, 1129040, 1411300, 1457488, 1821860, 2004046, 2277325, 2822600, 3643720, 4008092, 4554650, 5010115, 5645200, 7287440, 8016184, 9109300, 10020230, 16032368, 18218600, 20040460, 25050575, 36437200, 40080920, 50101150, 80161840, 100202300, 200404600, 400809200]

約数ペア:

[(1, 400809200), (2, 200404600), (4, 100202300), (5, 80161840), (8, 50101150), (10, 40080920), (11, 36437200), (16, 25050575), (20, 20040460), (22, 18218600), (25, 16032368), (40, 10020230), (44, 9109300), (50, 8016184), (55, 7287440), (71, 5645200), (80, 5010115), (88, 4554650), (100, 4008092), (110, 3643720), (142, 2822600), (176, 2277325), (200, 2004046), (220, 1821860), (275, 1457488), (284, 1411300), (355, 1129040), (400, 1002023), (440, 910930), (550, 728744), (568, 705650), (710, 564520), (781, 513200), (880, 455465), (1100, 364372), (1136, 352825), (1283, 312400), (1420, 282260), (1562, 256600), (1775, 225808), (2200, 182186), (2566, 156200), (2840, 141130), (3124, 128300), (3550, 112904), (3905, 102640), (4400, 91093), (5132, 78100), (5680, 70565), (6248, 64150), (6415, 62480), (7100, 56452), (7810, 51320), (10264, 39050), (12496, 32075), (12830, 31240), (14113, 28400), (14200, 28226), (15620, 25660), (19525, 20528)]