201581940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{479957}}^1$

素因数の和:479976

約数の個数: 48

約数和(自身を含む): 645063552

約数和(自身を除く): 443481612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 479957, 959914, 1439871, 1919828, 2399785, 2879742, 3359699, 4799570, 5759484, 6719398, 7199355, 9599140, 10079097, 13438796, 14398710, 16798495, 20158194, 28797420, 33596990, 40316388, 50395485, 67193980, 100790970, 201581940]

約数ペア:

[(1, 201581940), (2, 100790970), (3, 67193980), (4, 50395485), (5, 40316388), (6, 33596990), (7, 28797420), (10, 20158194), (12, 16798495), (14, 14398710), (15, 13438796), (20, 10079097), (21, 9599140), (28, 7199355), (30, 6719398), (35, 5759484), (42, 4799570), (60, 3359699), (70, 2879742), (84, 2399785), (105, 1919828), (140, 1439871), (210, 959914), (420, 479957)]