31880560

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 77298624

約数和(自身を除く): 45418064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 73, 80, 103, 106, 146, 206, 212, 265, 292, 365, 412, 424, 515, 530, 584, 730, 824, 848, 1030, 1060, 1168, 1460, 1648, 2060, 2120, 2920, 3869, 4120, 4240, 5459, 5840, 7519, 7738, 8240, 10918, 15038, 15476, 19345, 21836, 27295, 30076, 30952, 37595, 38690, 43672, 54590, 60152, 61904, 75190, 77380, 87344, 109180, 120304, 150380, 154760, 218360, 300760, 309520, 398507, 436720, 601520, 797014, 1594028, 1992535, 3188056, 3985070, 6376112, 7970140, 15940280, 31880560]

約数ペア:

[(1, 31880560), (2, 15940280), (4, 7970140), (5, 6376112), (8, 3985070), (10, 3188056), (16, 1992535), (20, 1594028), (40, 797014), (53, 601520), (73, 436720), (80, 398507), (103, 309520), (106, 300760), (146, 218360), (206, 154760), (212, 150380), (265, 120304), (292, 109180), (365, 87344), (412, 77380), (424, 75190), (515, 61904), (530, 60152), (584, 54590), (730, 43672), (824, 38690), (848, 37595), (1030, 30952), (1060, 30076), (1168, 27295), (1460, 21836), (1648, 19345), (2060, 15476), (2120, 15038), (2920, 10918), (3869, 8240), (4120, 7738), (4240, 7519), (5459, 5840)]