149009980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{383}}^1\times {\mathrm{397}}^1$

素因数の和:803

約数の個数: 72

約数和(自身を含む): 365879808

約数和(自身を除く): 216869828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 383, 397, 490, 766, 794, 980, 1532, 1588, 1915, 1985, 2681, 2779, 3830, 3970, 5362, 5558, 7660, 7940, 10724, 11116, 13405, 13895, 18767, 19453, 26810, 27790, 37534, 38906, 53620, 55580, 75068, 77812, 93835, 97265, 152051, 187670, 194530, 304102, 375340, 389060, 608204, 760255, 1064357, 1520510, 2128714, 3041020, 4257428, 5321785, 7450499, 10643570, 14900998, 21287140, 29801996, 37252495, 74504990, 149009980]

約数ペア:

[(1, 149009980), (2, 74504990), (4, 37252495), (5, 29801996), (7, 21287140), (10, 14900998), (14, 10643570), (20, 7450499), (28, 5321785), (35, 4257428), (49, 3041020), (70, 2128714), (98, 1520510), (140, 1064357), (196, 760255), (245, 608204), (383, 389060), (397, 375340), (490, 304102), (766, 194530), (794, 187670), (980, 152051), (1532, 97265), (1588, 93835), (1915, 77812), (1985, 75068), (2681, 55580), (2779, 53620), (3830, 38906), (3970, 37534), (5362, 27790), (5558, 26810), (7660, 19453), (7940, 18767), (10724, 13895), (11116, 13405)]