388607320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{3967}}^1$

素因数の和:4088

約数の個数: 64

約数和(自身を含む): 914227200

約数和(自身を除く): 525619880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 248, 310, 316, 395, 620, 632, 790, 1240, 1580, 2449, 3160, 3967, 4898, 7934, 9796, 12245, 15868, 19592, 19835, 24490, 31736, 39670, 48980, 79340, 97960, 122977, 158680, 245954, 313393, 491908, 614885, 626786, 983816, 1229770, 1253572, 1566965, 2459540, 2507144, 3133930, 4919080, 6267860, 9715183, 12535720, 19430366, 38860732, 48575915, 77721464, 97151830, 194303660, 388607320]

約数ペア:

[(1, 388607320), (2, 194303660), (4, 97151830), (5, 77721464), (8, 48575915), (10, 38860732), (20, 19430366), (31, 12535720), (40, 9715183), (62, 6267860), (79, 4919080), (124, 3133930), (155, 2507144), (158, 2459540), (248, 1566965), (310, 1253572), (316, 1229770), (395, 983816), (620, 626786), (632, 614885), (790, 491908), (1240, 313393), (1580, 245954), (2449, 158680), (3160, 122977), (3967, 97960), (4898, 79340), (7934, 48980), (9796, 39670), (12245, 31736), (15868, 24490), (19592, 19835)]