19727880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2081}}^1$

素因数の和:2174

約数の個数: 64

約数和(自身を含む): 59961600

約数和(自身を除く): 40233720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2081, 2370, 3160, 4162, 4740, 6243, 8324, 9480, 10405, 12486, 16648, 20810, 24972, 31215, 41620, 49944, 62430, 83240, 124860, 164399, 249720, 328798, 493197, 657596, 821995, 986394, 1315192, 1643990, 1972788, 2465985, 3287980, 3945576, 4931970, 6575960, 9863940, 19727880]

約数ペア:

[(1, 19727880), (2, 9863940), (3, 6575960), (4, 4931970), (5, 3945576), (6, 3287980), (8, 2465985), (10, 1972788), (12, 1643990), (15, 1315192), (20, 986394), (24, 821995), (30, 657596), (40, 493197), (60, 328798), (79, 249720), (120, 164399), (158, 124860), (237, 83240), (316, 62430), (395, 49944), (474, 41620), (632, 31215), (790, 24972), (948, 20810), (1185, 16648), (1580, 12486), (1896, 10405), (2081, 9480), (2370, 8324), (3160, 6243), (4162, 4740)]