256181520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4919}}^1$

素因数の和:4973

約数の個数: 160

約数和(自身を含む): 937082880

約数和(自身を除く): 680901360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 434, 465, 496, 560, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1488, 1680, 1736, 1860, 2170, 2480, 2604, 3255, 3472, 3720, 4340, 4919, 5208, 6510, 7440, 8680, 9838, 10416, 13020, 14757, 17360, 19676, 24595, 26040, 29514, 34433, 39352, 49190, 52080, 59028, 68866, 73785, 78704, 98380, 103299, 118056, 137732, 147570, 152489, 172165, 196760, 206598, 236112, 275464, 295140, 304978, 344330, 393520, 413196, 457467, 516495, 550928, 590280, 609956, 688660, 762445, 826392, 914934, 1032990, 1067423, 1180560, 1219912, 1377320, 1524890, 1652784, 1829868, 2065980, 2134846, 2287335, 2439824, 2754640, 3049780, 3202269, 3659736, 4131960, 4269692, 4574670, 5337115, 6099560, 6404538, 7319472, 8263920, 8539384, 9149340, 10674230, 12199120, 12809076, 16011345, 17078768, 18298680, 21348460, 25618152, 32022690, 36597360, 42696920, 51236304, 64045380, 85393840, 128090760, 256181520]

約数ペア:

[(1, 256181520), (2, 128090760), (3, 85393840), (4, 64045380), (5, 51236304), (6, 42696920), (7, 36597360), (8, 32022690), (10, 25618152), (12, 21348460), (14, 18298680), (15, 17078768), (16, 16011345), (20, 12809076), (21, 12199120), (24, 10674230), (28, 9149340), (30, 8539384), (31, 8263920), (35, 7319472), (40, 6404538), (42, 6099560), (48, 5337115), (56, 4574670), (60, 4269692), (62, 4131960), (70, 3659736), (80, 3202269), (84, 3049780), (93, 2754640), (105, 2439824), (112, 2287335), (120, 2134846), (124, 2065980), (140, 1829868), (155, 1652784), (168, 1524890), (186, 1377320), (210, 1219912), (217, 1180560), (240, 1067423), (248, 1032990), (280, 914934), (310, 826392), (336, 762445), (372, 688660), (420, 609956), (434, 590280), (465, 550928), (496, 516495), (560, 457467), (620, 413196), (651, 393520), (744, 344330), (840, 304978), (868, 295140), (930, 275464), (1085, 236112), (1240, 206598), (1302, 196760), (1488, 172165), (1680, 152489), (1736, 147570), (1860, 137732), (2170, 118056), (2480, 103299), (2604, 98380), (3255, 78704), (3472, 73785), (3720, 68866), (4340, 59028), (4919, 52080), (5208, 49190), (6510, 39352), (7440, 34433), (8680, 29514), (9838, 26040), (10416, 24595), (13020, 19676), (14757, 17360)]