11311720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 29548800

約数和(自身を除く): 18237080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 569, 710, 994, 1138, 1420, 1988, 2276, 2485, 2840, 2845, 3976, 3983, 4552, 4970, 5690, 7966, 9940, 11380, 15932, 19880, 19915, 22760, 31864, 39830, 40399, 79660, 80798, 159320, 161596, 201995, 282793, 323192, 403990, 565586, 807980, 1131172, 1413965, 1615960, 2262344, 2827930, 5655860, 11311720]

約数ペア:

[(1, 11311720), (2, 5655860), (4, 2827930), (5, 2262344), (7, 1615960), (8, 1413965), (10, 1131172), (14, 807980), (20, 565586), (28, 403990), (35, 323192), (40, 282793), (56, 201995), (70, 161596), (71, 159320), (140, 80798), (142, 79660), (280, 40399), (284, 39830), (355, 31864), (497, 22760), (568, 19915), (569, 19880), (710, 15932), (994, 11380), (1138, 9940), (1420, 7966), (1988, 5690), (2276, 4970), (2485, 4552), (2840, 3983), (2845, 3976)]