51831980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{971}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 116103456

約数和(自身を除く): 64271476

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 157, 170, 314, 340, 628, 785, 971, 1570, 1942, 2669, 3140, 3884, 4855, 5338, 9710, 10676, 13345, 16507, 19420, 26690, 33014, 53380, 66028, 82535, 152447, 165070, 304894, 330140, 609788, 762235, 1524470, 2591599, 3048940, 5183198, 10366396, 12957995, 25915990, 51831980]

約数ペア:

[(1, 51831980), (2, 25915990), (4, 12957995), (5, 10366396), (10, 5183198), (17, 3048940), (20, 2591599), (34, 1524470), (68, 762235), (85, 609788), (157, 330140), (170, 304894), (314, 165070), (340, 152447), (628, 82535), (785, 66028), (971, 53380), (1570, 33014), (1942, 26690), (2669, 19420), (3140, 16507), (3884, 13345), (4855, 10676), (5338, 9710)]