172012180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{659}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 374330880

約数和(自身を除く): 202318700

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 421, 620, 659, 842, 1318, 1684, 2105, 2636, 3295, 4210, 6590, 8420, 13051, 13180, 20429, 26102, 40858, 52204, 65255, 81716, 102145, 130510, 204290, 261020, 277439, 408580, 554878, 1109756, 1387195, 2774390, 5548780, 8600609, 17201218, 34402436, 43003045, 86006090, 172012180]

約数ペア:

[(1, 172012180), (2, 86006090), (4, 43003045), (5, 34402436), (10, 17201218), (20, 8600609), (31, 5548780), (62, 2774390), (124, 1387195), (155, 1109756), (310, 554878), (421, 408580), (620, 277439), (659, 261020), (842, 204290), (1318, 130510), (1684, 102145), (2105, 81716), (2636, 65255), (3295, 52204), (4210, 40858), (6590, 26102), (8420, 20429), (13051, 13180)]