30131560

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 70508880

約数和(自身を除く): 40377320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 61, 106, 122, 212, 233, 244, 265, 305, 424, 466, 488, 530, 610, 932, 1060, 1165, 1220, 1864, 2120, 2330, 2440, 3233, 4660, 6466, 9320, 12349, 12932, 14213, 16165, 24698, 25864, 28426, 32330, 49396, 56852, 61745, 64660, 71065, 98792, 113704, 123490, 129320, 142130, 246980, 284260, 493960, 568520, 753289, 1506578, 3013156, 3766445, 6026312, 7532890, 15065780, 30131560]

約数ペア:

[(1, 30131560), (2, 15065780), (4, 7532890), (5, 6026312), (8, 3766445), (10, 3013156), (20, 1506578), (40, 753289), (53, 568520), (61, 493960), (106, 284260), (122, 246980), (212, 142130), (233, 129320), (244, 123490), (265, 113704), (305, 98792), (424, 71065), (466, 64660), (488, 61745), (530, 56852), (610, 49396), (932, 32330), (1060, 28426), (1165, 25864), (1220, 24698), (1864, 16165), (2120, 14213), (2330, 12932), (2440, 12349), (3233, 9320), (4660, 6466)]