20123123800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{21089}}^1$

素因数の和:21485

約数の個数: 96

約数和(自身を含む): 50524891200

約数和(自身を除く): 30401767400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 367, 520, 650, 734, 1300, 1468, 1835, 2600, 2936, 3670, 4771, 7340, 9175, 9542, 14680, 18350, 19084, 21089, 23855, 36700, 38168, 42178, 47710, 73400, 84356, 95420, 105445, 119275, 168712, 190840, 210890, 238550, 274157, 421780, 477100, 527225, 548314, 843560, 954200, 1054450, 1096628, 1370785, 2108900, 2193256, 2741570, 4217800, 5483140, 6853925, 7739663, 10966280, 13707850, 15479326, 27415700, 30958652, 38698315, 54831400, 61917304, 77396630, 100615619, 154793260, 193491575, 201231238, 309586520, 386983150, 402462476, 503078095, 773966300, 804924952, 1006156190, 1547932600, 2012312380, 2515390475, 4024624760, 5030780950, 10061561900, 20123123800]

約数ペア:

[(1, 20123123800), (2, 10061561900), (4, 5030780950), (5, 4024624760), (8, 2515390475), (10, 2012312380), (13, 1547932600), (20, 1006156190), (25, 804924952), (26, 773966300), (40, 503078095), (50, 402462476), (52, 386983150), (65, 309586520), (100, 201231238), (104, 193491575), (130, 154793260), (200, 100615619), (260, 77396630), (325, 61917304), (367, 54831400), (520, 38698315), (650, 30958652), (734, 27415700), (1300, 15479326), (1468, 13707850), (1835, 10966280), (2600, 7739663), (2936, 6853925), (3670, 5483140), (4771, 4217800), (7340, 2741570), (9175, 2193256), (9542, 2108900), (14680, 1370785), (18350, 1096628), (19084, 1054450), (21089, 954200), (23855, 843560), (36700, 548314), (38168, 527225), (42178, 477100), (47710, 421780), (73400, 274157), (84356, 238550), (95420, 210890), (105445, 190840), (119275, 168712)]