55788380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 119713440

約数和(自身を除く): 63925060

約数列:

[1, 2, 4, 5, 10, 20, 109, 157, 163, 218, 314, 326, 436, 545, 628, 652, 785, 815, 1090, 1570, 1630, 2180, 3140, 3260, 17113, 17767, 25591, 34226, 35534, 51182, 68452, 71068, 85565, 88835, 102364, 127955, 171130, 177670, 255910, 342260, 355340, 511820, 2789419, 5578838, 11157676, 13947095, 27894190, 55788380]

約数ペア:

[(1, 55788380), (2, 27894190), (4, 13947095), (5, 11157676), (10, 5578838), (20, 2789419), (109, 511820), (157, 355340), (163, 342260), (218, 255910), (314, 177670), (326, 171130), (436, 127955), (545, 102364), (628, 88835), (652, 85565), (785, 71068), (815, 68452), (1090, 51182), (1570, 35534), (1630, 34226), (2180, 25591), (3140, 17767), (3260, 17113)]