189034280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{971}}^1$

素因数の和:1170

約数の個数: 64

約数和(自身を含む): 442298880

約数和(自身を除く): 253264600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 157, 248, 310, 314, 620, 628, 785, 971, 1240, 1256, 1570, 1942, 3140, 3884, 4855, 4867, 6280, 7768, 9710, 9734, 19420, 19468, 24335, 30101, 38840, 38936, 48670, 60202, 97340, 120404, 150505, 152447, 194680, 240808, 301010, 304894, 602020, 609788, 762235, 1204040, 1219576, 1524470, 3048940, 4725857, 6097880, 9451714, 18903428, 23629285, 37806856, 47258570, 94517140, 189034280]

約数ペア:

[(1, 189034280), (2, 94517140), (4, 47258570), (5, 37806856), (8, 23629285), (10, 18903428), (20, 9451714), (31, 6097880), (40, 4725857), (62, 3048940), (124, 1524470), (155, 1219576), (157, 1204040), (248, 762235), (310, 609788), (314, 602020), (620, 304894), (628, 301010), (785, 240808), (971, 194680), (1240, 152447), (1256, 150505), (1570, 120404), (1942, 97340), (3140, 60202), (3884, 48670), (4855, 38936), (4867, 38840), (6280, 30101), (7768, 24335), (9710, 19468), (9734, 19420)]