201618700

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{389}}^1$

素因数の和:547

約数の個数: 72

約数和(自身を含む): 450908640

約数和(自身を除く): 249289940

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 73, 100, 142, 146, 284, 292, 355, 365, 389, 710, 730, 778, 1420, 1460, 1556, 1775, 1825, 1945, 3550, 3650, 3890, 5183, 7100, 7300, 7780, 9725, 10366, 19450, 20732, 25915, 27619, 28397, 38900, 51830, 55238, 56794, 103660, 110476, 113588, 129575, 138095, 141985, 259150, 276190, 283970, 518300, 552380, 567940, 690475, 709925, 1380950, 1419850, 2016187, 2761900, 2839700, 4032374, 8064748, 10080935, 20161870, 40323740, 50404675, 100809350, 201618700]

約数ペア:

[(1, 201618700), (2, 100809350), (4, 50404675), (5, 40323740), (10, 20161870), (20, 10080935), (25, 8064748), (50, 4032374), (71, 2839700), (73, 2761900), (100, 2016187), (142, 1419850), (146, 1380950), (284, 709925), (292, 690475), (355, 567940), (365, 552380), (389, 518300), (710, 283970), (730, 276190), (778, 259150), (1420, 141985), (1460, 138095), (1556, 129575), (1775, 113588), (1825, 110476), (1945, 103660), (3550, 56794), (3650, 55238), (3890, 51830), (5183, 38900), (7100, 28397), (7300, 27619), (7780, 25915), (9725, 20732), (10366, 19450)]