12646520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 29730240

約数和(自身を除く): 17083720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 71, 73, 122, 142, 146, 244, 284, 292, 305, 355, 365, 488, 568, 584, 610, 710, 730, 1220, 1420, 1460, 2440, 2840, 2920, 4331, 4453, 5183, 8662, 8906, 10366, 17324, 17812, 20732, 21655, 22265, 25915, 34648, 35624, 41464, 43310, 44530, 51830, 86620, 89060, 103660, 173240, 178120, 207320, 316163, 632326, 1264652, 1580815, 2529304, 3161630, 6323260, 12646520]

約数ペア:

[(1, 12646520), (2, 6323260), (4, 3161630), (5, 2529304), (8, 1580815), (10, 1264652), (20, 632326), (40, 316163), (61, 207320), (71, 178120), (73, 173240), (122, 103660), (142, 89060), (146, 86620), (244, 51830), (284, 44530), (292, 43310), (305, 41464), (355, 35624), (365, 34648), (488, 25915), (568, 22265), (584, 21655), (610, 20732), (710, 17812), (730, 17324), (1220, 10366), (1420, 8906), (1460, 8662), (2440, 5183), (2840, 4453), (2920, 4331)]