20453973135

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1\times {\mathrm{1721}}^1$

素因数の和:2240

約数の個数: 64

約数和(自身を含む): 34437795840

約数和(自身を除く): 13983822705

約数列:

[1, 3, 5, 15, 31, 61, 93, 155, 183, 305, 419, 465, 915, 1257, 1721, 1891, 2095, 5163, 5673, 6285, 8605, 9455, 12989, 25559, 25815, 28365, 38967, 53351, 64945, 76677, 104981, 127795, 160053, 194835, 266755, 314943, 383385, 524905, 721099, 792329, 800265, 1574715, 2163297, 2376987, 3254411, 3605495, 3961645, 9763233, 10816485, 11884935, 16272055, 22354069, 43987039, 48816165, 67062207, 111770345, 131961117, 219935195, 335311035, 659805585, 1363598209, 4090794627, 6817991045, 20453973135]

約数ペア:

[(1, 20453973135), (3, 6817991045), (5, 4090794627), (15, 1363598209), (31, 659805585), (61, 335311035), (93, 219935195), (155, 131961117), (183, 111770345), (305, 67062207), (419, 48816165), (465, 43987039), (915, 22354069), (1257, 16272055), (1721, 11884935), (1891, 10816485), (2095, 9763233), (5163, 3961645), (5673, 3605495), (6285, 3254411), (8605, 2376987), (9455, 2163297), (12989, 1574715), (25559, 800265), (25815, 792329), (28365, 721099), (38967, 524905), (53351, 383385), (64945, 314943), (76677, 266755), (104981, 194835), (127795, 160053)]