408066980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{601}}^1\times {\mathrm{1997}}^1$

素因数の和:2624

約数の個数: 48

約数和(自身を含む): 909313776

約数和(自身を除く): 501246796

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 601, 1202, 1997, 2404, 3005, 3994, 6010, 7988, 9985, 10217, 12020, 19970, 20434, 33949, 39940, 40868, 51085, 67898, 102170, 135796, 169745, 204340, 339490, 678980, 1200197, 2400394, 4800788, 6000985, 12001970, 20403349, 24003940, 40806698, 81613396, 102016745, 204033490, 408066980]

約数ペア:

[(1, 408066980), (2, 204033490), (4, 102016745), (5, 81613396), (10, 40806698), (17, 24003940), (20, 20403349), (34, 12001970), (68, 6000985), (85, 4800788), (170, 2400394), (340, 1200197), (601, 678980), (1202, 339490), (1997, 204340), (2404, 169745), (3005, 135796), (3994, 102170), (6010, 67898), (7988, 51085), (9985, 40868), (10217, 39940), (12020, 33949), (19970, 20434)]