16518920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3413}}^1$

素因数の和:3446

約数の個数: 48

約数和(自身を含む): 40865580

約数和(自身を除く): 24346660

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, 2420, 3413, 4840, 6826, 13652, 17065, 27304, 34130, 37543, 68260, 75086, 136520, 150172, 187715, 300344, 375430, 412973, 750860, 825946, 1501720, 1651892, 2064865, 3303784, 4129730, 8259460, 16518920]

約数ペア:

[(1, 16518920), (2, 8259460), (4, 4129730), (5, 3303784), (8, 2064865), (10, 1651892), (11, 1501720), (20, 825946), (22, 750860), (40, 412973), (44, 375430), (55, 300344), (88, 187715), (110, 150172), (121, 136520), (220, 75086), (242, 68260), (440, 37543), (484, 34130), (605, 27304), (968, 17065), (1210, 13652), (2420, 6826), (3413, 4840)]