721630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1$

素因数の和:101

約数の個数: 48

約数和(自身を含む): 1633824

約数和(自身を除く): 912194

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 61, 65, 70, 91, 122, 130, 169, 182, 305, 338, 427, 455, 610, 793, 845, 854, 910, 1183, 1586, 1690, 2135, 2366, 3965, 4270, 5551, 5915, 7930, 10309, 11102, 11830, 20618, 27755, 51545, 55510, 72163, 103090, 144326, 360815, 721630]

約数ペア:

[(1, 721630), (2, 360815), (5, 144326), (7, 103090), (10, 72163), (13, 55510), (14, 51545), (26, 27755), (35, 20618), (61, 11830), (65, 11102), (70, 10309), (91, 7930), (122, 5915), (130, 5551), (169, 4270), (182, 3965), (305, 2366), (338, 2135), (427, 1690), (455, 1586), (610, 1183), (793, 910), (845, 854)]