258902080

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26099}}^1$

素因数の和:26147

約数の個数: 56

約数和(自身を含む): 636422400

約数和(自身を除く): 377520320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 26099, 52198, 104396, 130495, 208792, 260990, 417584, 521980, 809069, 835168, 1043960, 1618138, 1670336, 2087920, 3236276, 4045345, 4175840, 6472552, 8090690, 8351680, 12945104, 16181380, 25890208, 32362760, 51780416, 64725520, 129451040, 258902080]

約数ペア:

[(1, 258902080), (2, 129451040), (4, 64725520), (5, 51780416), (8, 32362760), (10, 25890208), (16, 16181380), (20, 12945104), (31, 8351680), (32, 8090690), (40, 6472552), (62, 4175840), (64, 4045345), (80, 3236276), (124, 2087920), (155, 1670336), (160, 1618138), (248, 1043960), (310, 835168), (320, 809069), (496, 521980), (620, 417584), (992, 260990), (1240, 208792), (1984, 130495), (2480, 104396), (4960, 52198), (9920, 26099)]