81122980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{601}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 181134576

約数和(自身を除く): 100011596

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 397, 601, 794, 1202, 1588, 1985, 2404, 3005, 3970, 6010, 6749, 7940, 10217, 12020, 13498, 20434, 26996, 33745, 40868, 51085, 67490, 102170, 134980, 204340, 238597, 477194, 954388, 1192985, 2385970, 4056149, 4771940, 8112298, 16224596, 20280745, 40561490, 81122980]

約数ペア:

[(1, 81122980), (2, 40561490), (4, 20280745), (5, 16224596), (10, 8112298), (17, 4771940), (20, 4056149), (34, 2385970), (68, 1192985), (85, 954388), (170, 477194), (340, 238597), (397, 204340), (601, 134980), (794, 102170), (1202, 67490), (1588, 51085), (1985, 40868), (2404, 33745), (3005, 26996), (3970, 20434), (6010, 13498), (6749, 12020), (7940, 10217)]