7806920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1613}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 19319580

約数和(自身を除く): 11512660

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 1613, 2420, 3226, 4840, 6452, 8065, 12904, 16130, 17743, 32260, 35486, 64520, 70972, 88715, 141944, 177430, 195173, 354860, 390346, 709720, 780692, 975865, 1561384, 1951730, 3903460, 7806920]

約数ペア:

[(1, 7806920), (2, 3903460), (4, 1951730), (5, 1561384), (8, 975865), (10, 780692), (11, 709720), (20, 390346), (22, 354860), (40, 195173), (44, 177430), (55, 141944), (88, 88715), (110, 70972), (121, 64520), (220, 35486), (242, 32260), (440, 17743), (484, 16130), (605, 12904), (968, 8065), (1210, 6452), (1613, 4840), (2420, 3226)]