30991850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{101}}^1$

素因数の和:168

約数の個数: 72

約数和(自身を含む): 65054988

約数和(自身を除く): 34063138

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 85, 95, 101, 170, 190, 202, 323, 361, 425, 475, 505, 646, 722, 850, 950, 1010, 1615, 1717, 1805, 1919, 2525, 3230, 3434, 3610, 3838, 5050, 6137, 8075, 8585, 9025, 9595, 12274, 16150, 17170, 18050, 19190, 30685, 32623, 36461, 42925, 47975, 61370, 65246, 72922, 85850, 95950, 153425, 163115, 182305, 306850, 326230, 364610, 619837, 815575, 911525, 1239674, 1631150, 1823050, 3099185, 6198370, 15495925, 30991850]

約数ペア:

[(1, 30991850), (2, 15495925), (5, 6198370), (10, 3099185), (17, 1823050), (19, 1631150), (25, 1239674), (34, 911525), (38, 815575), (50, 619837), (85, 364610), (95, 326230), (101, 306850), (170, 182305), (190, 163115), (202, 153425), (323, 95950), (361, 85850), (425, 72922), (475, 65246), (505, 61370), (646, 47975), (722, 42925), (850, 36461), (950, 32623), (1010, 30685), (1615, 19190), (1717, 18050), (1805, 17170), (1919, 16150), (2525, 12274), (3230, 9595), (3434, 9025), (3610, 8585), (3838, 8075), (5050, 6137)]