209855120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2287}}^1$

素因数の和:2368

約数の個数: 80

約数和(自身を含む): 517490688

約数和(自身を除く): 307635568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 62, 74, 80, 124, 148, 155, 185, 248, 296, 310, 370, 496, 592, 620, 740, 1147, 1240, 1480, 2287, 2294, 2480, 2960, 4574, 4588, 5735, 9148, 9176, 11435, 11470, 18296, 18352, 22870, 22940, 36592, 45740, 45880, 70897, 84619, 91480, 91760, 141794, 169238, 182960, 283588, 338476, 354485, 423095, 567176, 676952, 708970, 846190, 1134352, 1353904, 1417940, 1692380, 2623189, 2835880, 3384760, 5246378, 5671760, 6769520, 10492756, 13115945, 20985512, 26231890, 41971024, 52463780, 104927560, 209855120]

約数ペア:

[(1, 209855120), (2, 104927560), (4, 52463780), (5, 41971024), (8, 26231890), (10, 20985512), (16, 13115945), (20, 10492756), (31, 6769520), (37, 5671760), (40, 5246378), (62, 3384760), (74, 2835880), (80, 2623189), (124, 1692380), (148, 1417940), (155, 1353904), (185, 1134352), (248, 846190), (296, 708970), (310, 676952), (370, 567176), (496, 423095), (592, 354485), (620, 338476), (740, 283588), (1147, 182960), (1240, 169238), (1480, 141794), (2287, 91760), (2294, 91480), (2480, 84619), (2960, 70897), (4574, 45880), (4588, 45740), (5735, 36592), (9148, 22940), (9176, 22870), (11435, 18352), (11470, 18296)]