139783960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:992

約数の個数: 64

約数和(自身を含む): 327398400

約数和(自身を除く): 187614440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 139, 155, 248, 278, 310, 556, 620, 695, 811, 1112, 1240, 1390, 1622, 2780, 3244, 4055, 4309, 5560, 6488, 8110, 8618, 16220, 17236, 21545, 25141, 32440, 34472, 43090, 50282, 86180, 100564, 112729, 125705, 172360, 201128, 225458, 251410, 450916, 502820, 563645, 901832, 1005640, 1127290, 2254580, 3494599, 4509160, 6989198, 13978396, 17472995, 27956792, 34945990, 69891980, 139783960]

約数ペア:

[(1, 139783960), (2, 69891980), (4, 34945990), (5, 27956792), (8, 17472995), (10, 13978396), (20, 6989198), (31, 4509160), (40, 3494599), (62, 2254580), (124, 1127290), (139, 1005640), (155, 901832), (248, 563645), (278, 502820), (310, 450916), (556, 251410), (620, 225458), (695, 201128), (811, 172360), (1112, 125705), (1240, 112729), (1390, 100564), (1622, 86180), (2780, 50282), (3244, 43090), (4055, 34472), (4309, 32440), (5560, 25141), (6488, 21545), (8110, 17236), (8618, 16220)]