15000000460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{179813}}^1$

素因数の和:179962

約数の個数: 48

約数和(自身を含む): 32565034656

約数和(自身を除く): 17565034196

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 194, 215, 388, 430, 485, 860, 970, 1940, 4171, 8342, 16684, 20855, 41710, 83420, 179813, 359626, 719252, 899065, 1798130, 3596260, 7731959, 15463918, 17441861, 30927836, 34883722, 38659795, 69767444, 77319590, 87209305, 154639180, 174418610, 348837220, 750000023, 1500000046, 3000000092, 3750000115, 7500000230, 15000000460]

約数ペア:

[(1, 15000000460), (2, 7500000230), (4, 3750000115), (5, 3000000092), (10, 1500000046), (20, 750000023), (43, 348837220), (86, 174418610), (97, 154639180), (172, 87209305), (194, 77319590), (215, 69767444), (388, 38659795), (430, 34883722), (485, 30927836), (860, 17441861), (970, 15463918), (1940, 7731959), (4171, 3596260), (8342, 1798130), (16684, 899065), (20855, 719252), (41710, 359626), (83420, 179813)]