51221520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{10163}}^1$

素因数の和:10189

約数の個数: 120

約数和(自身を含む): 196612416

約数和(自身を除く): 145390896

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 10163, 20326, 30489, 40652, 50815, 60978, 71141, 81304, 91467, 101630, 121956, 142282, 152445, 162608, 182934, 203260, 213423, 243912, 284564, 304890, 355705, 365868, 406520, 426846, 457335, 487824, 569128, 609780, 640269, 711410, 731736, 813040, 853692, 914670, 1067115, 1138256, 1219560, 1280538, 1422820, 1463472, 1707384, 1829340, 2134230, 2439120, 2561076, 2845640, 3201345, 3414768, 3658680, 4268460, 5122152, 5691280, 6402690, 7317360, 8536920, 10244304, 12805380, 17073840, 25610760, 51221520]

約数ペア:

[(1, 51221520), (2, 25610760), (3, 17073840), (4, 12805380), (5, 10244304), (6, 8536920), (7, 7317360), (8, 6402690), (9, 5691280), (10, 5122152), (12, 4268460), (14, 3658680), (15, 3414768), (16, 3201345), (18, 2845640), (20, 2561076), (21, 2439120), (24, 2134230), (28, 1829340), (30, 1707384), (35, 1463472), (36, 1422820), (40, 1280538), (42, 1219560), (45, 1138256), (48, 1067115), (56, 914670), (60, 853692), (63, 813040), (70, 731736), (72, 711410), (80, 640269), (84, 609780), (90, 569128), (105, 487824), (112, 457335), (120, 426846), (126, 406520), (140, 365868), (144, 355705), (168, 304890), (180, 284564), (210, 243912), (240, 213423), (252, 203260), (280, 182934), (315, 162608), (336, 152445), (360, 142282), (420, 121956), (504, 101630), (560, 91467), (630, 81304), (720, 71141), (840, 60978), (1008, 50815), (1260, 40652), (1680, 30489), (2520, 20326), (5040, 10163)]