258489840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{613}}^1$

素因数の和:887

約数の個数: 160

約数和(自身を含む): 920941056

約数和(自身を除く): 662451216

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 251, 280, 336, 420, 502, 560, 613, 753, 840, 1004, 1226, 1255, 1506, 1680, 1757, 1839, 2008, 2452, 2510, 3012, 3065, 3514, 3678, 3765, 4016, 4291, 4904, 5020, 5271, 6024, 6130, 7028, 7356, 7530, 8582, 8785, 9195, 9808, 10040, 10542, 12048, 12260, 12873, 14056, 14712, 15060, 17164, 17570, 18390, 20080, 21084, 21455, 24520, 25746, 26355, 28112, 29424, 30120, 34328, 35140, 36780, 42168, 42910, 49040, 51492, 52710, 60240, 64365, 68656, 70280, 73560, 84336, 85820, 102984, 105420, 128730, 140560, 147120, 153863, 171640, 205968, 210840, 257460, 307726, 343280, 421680, 461589, 514920, 615452, 769315, 923178, 1029840, 1077041, 1230904, 1538630, 1846356, 2154082, 2307945, 2461808, 3077260, 3231123, 3692712, 4308164, 4615890, 5385205, 6154520, 6462246, 7385424, 8616328, 9231780, 10770410, 12309040, 12924492, 16155615, 17232656, 18463560, 21540820, 25848984, 32311230, 36927120, 43081640, 51697968, 64622460, 86163280, 129244920, 258489840]

約数ペア:

[(1, 258489840), (2, 129244920), (3, 86163280), (4, 64622460), (5, 51697968), (6, 43081640), (7, 36927120), (8, 32311230), (10, 25848984), (12, 21540820), (14, 18463560), (15, 17232656), (16, 16155615), (20, 12924492), (21, 12309040), (24, 10770410), (28, 9231780), (30, 8616328), (35, 7385424), (40, 6462246), (42, 6154520), (48, 5385205), (56, 4615890), (60, 4308164), (70, 3692712), (80, 3231123), (84, 3077260), (105, 2461808), (112, 2307945), (120, 2154082), (140, 1846356), (168, 1538630), (210, 1230904), (240, 1077041), (251, 1029840), (280, 923178), (336, 769315), (420, 615452), (502, 514920), (560, 461589), (613, 421680), (753, 343280), (840, 307726), (1004, 257460), (1226, 210840), (1255, 205968), (1506, 171640), (1680, 153863), (1757, 147120), (1839, 140560), (2008, 128730), (2452, 105420), (2510, 102984), (3012, 85820), (3065, 84336), (3514, 73560), (3678, 70280), (3765, 68656), (4016, 64365), (4291, 60240), (4904, 52710), (5020, 51492), (5271, 49040), (6024, 42910), (6130, 42168), (7028, 36780), (7356, 35140), (7530, 34328), (8582, 30120), (8785, 29424), (9195, 28112), (9808, 26355), (10040, 25746), (10542, 24520), (12048, 21455), (12260, 21084), (12873, 20080), (14056, 18390), (14712, 17570), (15060, 17164)]