1640574720

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2687}}^1$

素因数の和:2767

約数の個数: 216

約数和(自身を含む): 5785468416

約数和(自身を除く): 4144893696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 53, 60, 64, 72, 80, 90, 96, 106, 120, 128, 144, 159, 160, 180, 192, 212, 240, 256, 265, 288, 318, 320, 360, 384, 424, 477, 480, 530, 576, 636, 640, 720, 768, 795, 848, 954, 960, 1060, 1152, 1272, 1280, 1440, 1590, 1696, 1908, 1920, 2120, 2304, 2385, 2544, 2687, 2880, 3180, 3392, 3816, 3840, 4240, 4770, 5088, 5374, 5760, 6360, 6784, 7632, 8061, 8480, 9540, 10176, 10748, 11520, 12720, 13435, 13568, 15264, 16122, 16960, 19080, 20352, 21496, 24183, 25440, 26870, 30528, 32244, 33920, 38160, 40305, 40704, 42992, 48366, 50880, 53740, 61056, 64488, 67840, 76320, 80610, 85984, 96732, 101760, 107480, 120915, 122112, 128976, 142411, 152640, 161220, 171968, 193464, 203520, 214960, 241830, 257952, 284822, 305280, 322440, 343936, 386928, 427233, 429920, 483660, 515904, 569644, 610560, 644880, 687872, 712055, 773856, 854466, 859840, 967320, 1031808, 1139288, 1281699, 1289760, 1424110, 1547712, 1708932, 1719680, 1934640, 2063616, 2136165, 2278576, 2563398, 2579520, 2848220, 3095424, 3417864, 3439360, 3869280, 4272330, 4557152, 5126796, 5159040, 5696440, 6190848, 6408495, 6835728, 7738560, 8544660, 9114304, 10253592, 10318080, 11392880, 12816990, 13671456, 15477120, 17089320, 18228608, 20507184, 22785760, 25633980, 27342912, 30954240, 34178640, 36457216, 41014368, 45571520, 51267960, 54685824, 68357280, 82028736, 91143040, 102535920, 109371648, 136714560, 164057472, 182286080, 205071840, 273429120, 328114944, 410143680, 546858240, 820287360, 1640574720]

約数ペア:

[(1, 1640574720), (2, 820287360), (3, 546858240), (4, 410143680), (5, 328114944), (6, 273429120), (8, 205071840), (9, 182286080), (10, 164057472), (12, 136714560), (15, 109371648), (16, 102535920), (18, 91143040), (20, 82028736), (24, 68357280), (30, 54685824), (32, 51267960), (36, 45571520), (40, 41014368), (45, 36457216), (48, 34178640), (53, 30954240), (60, 27342912), (64, 25633980), (72, 22785760), (80, 20507184), (90, 18228608), (96, 17089320), (106, 15477120), (120, 13671456), (128, 12816990), (144, 11392880), (159, 10318080), (160, 10253592), (180, 9114304), (192, 8544660), (212, 7738560), (240, 6835728), (256, 6408495), (265, 6190848), (288, 5696440), (318, 5159040), (320, 5126796), (360, 4557152), (384, 4272330), (424, 3869280), (477, 3439360), (480, 3417864), (530, 3095424), (576, 2848220), (636, 2579520), (640, 2563398), (720, 2278576), (768, 2136165), (795, 2063616), (848, 1934640), (954, 1719680), (960, 1708932), (1060, 1547712), (1152, 1424110), (1272, 1289760), (1280, 1281699), (1440, 1139288), (1590, 1031808), (1696, 967320), (1908, 859840), (1920, 854466), (2120, 773856), (2304, 712055), (2385, 687872), (2544, 644880), (2687, 610560), (2880, 569644), (3180, 515904), (3392, 483660), (3816, 429920), (3840, 427233), (4240, 386928), (4770, 343936), (5088, 322440), (5374, 305280), (5760, 284822), (6360, 257952), (6784, 241830), (7632, 214960), (8061, 203520), (8480, 193464), (9540, 171968), (10176, 161220), (10748, 152640), (11520, 142411), (12720, 128976), (13435, 122112), (13568, 120915), (15264, 107480), (16122, 101760), (16960, 96732), (19080, 85984), (20352, 80610), (21496, 76320), (24183, 67840), (25440, 64488), (26870, 61056), (30528, 53740), (32244, 50880), (33920, 48366), (38160, 42992), (40305, 40704)]