127975720

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 295358400

約数和(自身を除く): 167382680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 211, 236, 257, 295, 422, 472, 514, 590, 844, 1028, 1055, 1180, 1285, 1688, 2056, 2110, 2360, 2570, 4220, 5140, 8440, 10280, 12449, 15163, 24898, 30326, 49796, 54227, 60652, 62245, 75815, 99592, 108454, 121304, 124490, 151630, 216908, 248980, 271135, 303260, 433816, 497960, 542270, 606520, 1084540, 2169080, 3199393, 6398786, 12797572, 15996965, 25595144, 31993930, 63987860, 127975720]

約数ペア:

[(1, 127975720), (2, 63987860), (4, 31993930), (5, 25595144), (8, 15996965), (10, 12797572), (20, 6398786), (40, 3199393), (59, 2169080), (118, 1084540), (211, 606520), (236, 542270), (257, 497960), (295, 433816), (422, 303260), (472, 271135), (514, 248980), (590, 216908), (844, 151630), (1028, 124490), (1055, 121304), (1180, 108454), (1285, 99592), (1688, 75815), (2056, 62245), (2110, 60652), (2360, 54227), (2570, 49796), (4220, 30326), (5140, 24898), (8440, 15163), (10280, 12449)]