201672980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{1361}}^1$

素因数の和:1640

約数の個数: 48

約数和(自身を含む): 439326720

約数和(自身を除く): 237653740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 239, 310, 478, 620, 956, 1195, 1361, 2390, 2722, 4780, 5444, 6805, 7409, 13610, 14818, 27220, 29636, 37045, 42191, 74090, 84382, 148180, 168764, 210955, 325279, 421910, 650558, 843820, 1301116, 1626395, 3252790, 6505580, 10083649, 20167298, 40334596, 50418245, 100836490, 201672980]

約数ペア:

[(1, 201672980), (2, 100836490), (4, 50418245), (5, 40334596), (10, 20167298), (20, 10083649), (31, 6505580), (62, 3252790), (124, 1626395), (155, 1301116), (239, 843820), (310, 650558), (478, 421910), (620, 325279), (956, 210955), (1195, 168764), (1361, 148180), (2390, 84382), (2722, 74090), (4780, 42191), (5444, 37045), (6805, 29636), (7409, 27220), (13610, 14818)]