907779940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{13553}}^1$

素因数の和:13776

約数の個数: 48

約数和(自身を含む): 2028871152

約数和(自身を除く): 1121091212

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 340, 394, 788, 985, 1970, 3349, 3940, 6698, 13396, 13553, 16745, 27106, 33490, 54212, 66980, 67765, 135530, 230401, 271060, 460802, 921604, 1152005, 2304010, 2669941, 4608020, 5339882, 10679764, 13349705, 26699410, 45388997, 53398820, 90777994, 181555988, 226944985, 453889970, 907779940]

約数ペア:

[(1, 907779940), (2, 453889970), (4, 226944985), (5, 181555988), (10, 90777994), (17, 53398820), (20, 45388997), (34, 26699410), (68, 13349705), (85, 10679764), (170, 5339882), (197, 4608020), (340, 2669941), (394, 2304010), (788, 1152005), (985, 921604), (1970, 460802), (3349, 271060), (3940, 230401), (6698, 135530), (13396, 67765), (13553, 66980), (16745, 54212), (27106, 33490)]