20809930928

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1\times {\mathrm{2477}}^1$

素因数の和:3030

約数の個数: 80

約数和(自身を含む): 43439657184

約数和(自身を除く): 22629726256

約数列:

[1, 2, 4, 8, 16, 17, 34, 67, 68, 134, 136, 268, 272, 461, 536, 922, 1072, 1139, 1844, 2278, 2477, 3688, 4556, 4954, 7376, 7837, 9112, 9908, 15674, 18224, 19816, 30887, 31348, 39632, 42109, 61774, 62696, 84218, 123548, 125392, 165959, 168436, 247096, 331918, 336872, 494192, 525079, 663836, 673744, 1050158, 1141897, 1327672, 2100316, 2283794, 2655344, 2821303, 4200632, 4567588, 5642606, 8401264, 9135176, 11285212, 18270352, 19412249, 22570424, 38824498, 45140848, 76507099, 77648996, 153014198, 155297992, 306028396, 310595984, 612056792, 1224113584, 1300620683, 2601241366, 5202482732, 10404965464, 20809930928]

約数ペア:

[(1, 20809930928), (2, 10404965464), (4, 5202482732), (8, 2601241366), (16, 1300620683), (17, 1224113584), (34, 612056792), (67, 310595984), (68, 306028396), (134, 155297992), (136, 153014198), (268, 77648996), (272, 76507099), (461, 45140848), (536, 38824498), (922, 22570424), (1072, 19412249), (1139, 18270352), (1844, 11285212), (2278, 9135176), (2477, 8401264), (3688, 5642606), (4556, 4567588), (4954, 4200632), (7376, 2821303), (7837, 2655344), (9112, 2283794), (9908, 2100316), (15674, 1327672), (18224, 1141897), (19816, 1050158), (30887, 673744), (31348, 663836), (39632, 525079), (42109, 494192), (61774, 336872), (62696, 331918), (84218, 247096), (123548, 168436), (125392, 165959)]