123613840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3109}}^1$

素因数の和:3200

約数の個数: 80

約数和(自身を含む): 333192960

約数和(自身を除く): 209579120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2485, 2840, 3109, 3976, 4970, 5680, 6218, 7952, 9940, 12436, 15545, 19880, 21763, 24872, 31090, 39760, 43526, 49744, 62180, 87052, 108815, 124360, 174104, 217630, 220739, 248720, 348208, 435260, 441478, 870520, 882956, 1103695, 1545173, 1741040, 1765912, 2207390, 3090346, 3531824, 4414780, 6180692, 7725865, 8829560, 12361384, 15451730, 17659120, 24722768, 30903460, 61806920, 123613840]

約数ペア:

[(1, 123613840), (2, 61806920), (4, 30903460), (5, 24722768), (7, 17659120), (8, 15451730), (10, 12361384), (14, 8829560), (16, 7725865), (20, 6180692), (28, 4414780), (35, 3531824), (40, 3090346), (56, 2207390), (70, 1765912), (71, 1741040), (80, 1545173), (112, 1103695), (140, 882956), (142, 870520), (280, 441478), (284, 435260), (355, 348208), (497, 248720), (560, 220739), (568, 217630), (710, 174104), (994, 124360), (1136, 108815), (1420, 87052), (1988, 62180), (2485, 49744), (2840, 43526), (3109, 39760), (3976, 31090), (4970, 24872), (5680, 21763), (6218, 19880), (7952, 15545), (9940, 12436)]