9840020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 21772800

約数和(自身を除く): 11932780

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 118, 124, 155, 236, 269, 295, 310, 538, 590, 620, 1076, 1180, 1345, 1829, 2690, 3658, 5380, 7316, 8339, 9145, 15871, 16678, 18290, 31742, 33356, 36580, 41695, 63484, 79355, 83390, 158710, 166780, 317420, 492001, 984002, 1968004, 2460005, 4920010, 9840020]

約数ペア:

[(1, 9840020), (2, 4920010), (4, 2460005), (5, 1968004), (10, 984002), (20, 492001), (31, 317420), (59, 166780), (62, 158710), (118, 83390), (124, 79355), (155, 63484), (236, 41695), (269, 36580), (295, 33356), (310, 31742), (538, 18290), (590, 16678), (620, 15871), (1076, 9145), (1180, 8339), (1345, 7316), (1829, 5380), (2690, 3658)]