7888520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^2$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 18385380

約数和(自身を除く): 10496860

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 61, 106, 122, 212, 244, 265, 305, 424, 488, 530, 610, 1060, 1220, 2120, 2440, 3233, 3721, 6466, 7442, 12932, 14884, 16165, 18605, 25864, 29768, 32330, 37210, 64660, 74420, 129320, 148840, 197213, 394426, 788852, 986065, 1577704, 1972130, 3944260, 7888520]

約数ペア:

[(1, 7888520), (2, 3944260), (4, 1972130), (5, 1577704), (8, 986065), (10, 788852), (20, 394426), (40, 197213), (53, 148840), (61, 129320), (106, 74420), (122, 64660), (212, 37210), (244, 32330), (265, 29768), (305, 25864), (424, 18605), (488, 16165), (530, 14884), (610, 12932), (1060, 7442), (1220, 6466), (2120, 3721), (2440, 3233)]