40000870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1$

素因数の和:529

約数の個数: 64

約数和(自身を含む): 89631360

約数和(自身を除く): 49630490

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 113, 130, 182, 226, 389, 455, 565, 778, 791, 910, 1130, 1469, 1582, 1945, 2723, 2938, 3890, 3955, 5057, 5446, 7345, 7910, 10114, 10283, 13615, 14690, 20566, 25285, 27230, 35399, 43957, 50570, 51415, 70798, 87914, 102830, 176995, 219785, 307699, 353990, 439570, 571441, 615398, 1142882, 1538495, 2857205, 3076990, 4000087, 5714410, 8000174, 20000435, 40000870]

約数ペア:

[(1, 40000870), (2, 20000435), (5, 8000174), (7, 5714410), (10, 4000087), (13, 3076990), (14, 2857205), (26, 1538495), (35, 1142882), (65, 615398), (70, 571441), (91, 439570), (113, 353990), (130, 307699), (182, 219785), (226, 176995), (389, 102830), (455, 87914), (565, 70798), (778, 51415), (791, 50570), (910, 43957), (1130, 35399), (1469, 27230), (1582, 25285), (1945, 20566), (2723, 14690), (2938, 13615), (3890, 10283), (3955, 10114), (5057, 7910), (5446, 7345)]