220105880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{2657}}^1$

素因数の和:2796

約数の個数: 64

約数和(自身を含む): 526284000

約数和(自身を除く): 306178120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 109, 152, 190, 218, 380, 436, 545, 760, 872, 1090, 2071, 2180, 2657, 4142, 4360, 5314, 8284, 10355, 10628, 13285, 16568, 20710, 21256, 26570, 41420, 50483, 53140, 82840, 100966, 106280, 201932, 252415, 289613, 403864, 504830, 579226, 1009660, 1158452, 1448065, 2019320, 2316904, 2896130, 5502647, 5792260, 11005294, 11584520, 22010588, 27513235, 44021176, 55026470, 110052940, 220105880]

約数ペア:

[(1, 220105880), (2, 110052940), (4, 55026470), (5, 44021176), (8, 27513235), (10, 22010588), (19, 11584520), (20, 11005294), (38, 5792260), (40, 5502647), (76, 2896130), (95, 2316904), (109, 2019320), (152, 1448065), (190, 1158452), (218, 1009660), (380, 579226), (436, 504830), (545, 403864), (760, 289613), (872, 252415), (1090, 201932), (2071, 106280), (2180, 100966), (2657, 82840), (4142, 53140), (4360, 50483), (5314, 41420), (8284, 26570), (10355, 21256), (10628, 20710), (13285, 16568)]