279877840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{997}}^1$

素因数の和:1061

約数の個数: 120

約数和(自身を含む): 740655720

約数和(自身を除く): 460777880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 121, 145, 176, 220, 232, 242, 290, 319, 440, 464, 484, 580, 605, 638, 880, 968, 997, 1160, 1210, 1276, 1595, 1936, 1994, 2320, 2420, 2552, 3190, 3509, 3988, 4840, 4985, 5104, 6380, 7018, 7976, 9680, 9970, 10967, 12760, 14036, 15952, 17545, 19940, 21934, 25520, 28072, 28913, 35090, 39880, 43868, 54835, 56144, 57826, 70180, 79760, 87736, 109670, 115652, 120637, 140360, 144565, 175472, 219340, 231304, 241274, 280720, 289130, 318043, 438680, 462608, 482548, 578260, 603185, 636086, 877360, 965096, 1156520, 1206370, 1272172, 1590215, 1930192, 2313040, 2412740, 2544344, 3180430, 3498473, 4825480, 5088688, 6360860, 6996946, 9650960, 12721720, 13993892, 17492365, 25443440, 27987784, 34984730, 55975568, 69969460, 139938920, 279877840]

約数ペア:

[(1, 279877840), (2, 139938920), (4, 69969460), (5, 55975568), (8, 34984730), (10, 27987784), (11, 25443440), (16, 17492365), (20, 13993892), (22, 12721720), (29, 9650960), (40, 6996946), (44, 6360860), (55, 5088688), (58, 4825480), (80, 3498473), (88, 3180430), (110, 2544344), (116, 2412740), (121, 2313040), (145, 1930192), (176, 1590215), (220, 1272172), (232, 1206370), (242, 1156520), (290, 965096), (319, 877360), (440, 636086), (464, 603185), (484, 578260), (580, 482548), (605, 462608), (638, 438680), (880, 318043), (968, 289130), (997, 280720), (1160, 241274), (1210, 231304), (1276, 219340), (1595, 175472), (1936, 144565), (1994, 140360), (2320, 120637), (2420, 115652), (2552, 109670), (3190, 87736), (3509, 79760), (3988, 70180), (4840, 57826), (4985, 56144), (5104, 54835), (6380, 43868), (7018, 39880), (7976, 35090), (9680, 28913), (9970, 28072), (10967, 25520), (12760, 21934), (14036, 19940), (15952, 17545)]