840507920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{28319}}^1$

素因数の和:28392

約数の個数: 80

約数和(自身を含む): 2275568640

約数和(自身を除く): 1435060720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 742, 848, 1060, 1484, 1855, 2120, 2968, 3710, 4240, 5936, 7420, 14840, 28319, 29680, 56638, 113276, 141595, 198233, 226552, 283190, 396466, 453104, 566380, 792932, 991165, 1132760, 1500907, 1585864, 1982330, 2265520, 3001814, 3171728, 3964660, 6003628, 7504535, 7929320, 10506349, 12007256, 15009070, 15858640, 21012698, 24014512, 30018140, 42025396, 52531745, 60036280, 84050792, 105063490, 120072560, 168101584, 210126980, 420253960, 840507920]

約数ペア:

[(1, 840507920), (2, 420253960), (4, 210126980), (5, 168101584), (7, 120072560), (8, 105063490), (10, 84050792), (14, 60036280), (16, 52531745), (20, 42025396), (28, 30018140), (35, 24014512), (40, 21012698), (53, 15858640), (56, 15009070), (70, 12007256), (80, 10506349), (106, 7929320), (112, 7504535), (140, 6003628), (212, 3964660), (265, 3171728), (280, 3001814), (371, 2265520), (424, 1982330), (530, 1585864), (560, 1500907), (742, 1132760), (848, 991165), (1060, 792932), (1484, 566380), (1855, 453104), (2120, 396466), (2968, 283190), (3710, 226552), (4240, 198233), (5936, 141595), (7420, 113276), (14840, 56638), (28319, 29680)]