19252415

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 31933440

約数和(自身を除く): 12681025

約数列:

[1, 5, 7, 13, 17, 19, 35, 65, 85, 91, 95, 119, 131, 133, 221, 247, 323, 455, 595, 655, 665, 917, 1105, 1235, 1547, 1615, 1703, 1729, 2227, 2261, 2489, 4199, 4585, 7735, 8515, 8645, 11135, 11305, 11921, 12445, 15589, 17423, 20995, 28951, 29393, 32357, 42313, 59605, 77945, 87115, 144755, 146965, 161785, 202657, 211565, 226499, 296191, 550069, 1013285, 1132495, 1480955, 2750345, 3850483, 19252415]

約数ペア:

[(1, 19252415), (5, 3850483), (7, 2750345), (13, 1480955), (17, 1132495), (19, 1013285), (35, 550069), (65, 296191), (85, 226499), (91, 211565), (95, 202657), (119, 161785), (131, 146965), (133, 144755), (221, 87115), (247, 77945), (323, 59605), (455, 42313), (595, 32357), (655, 29393), (665, 28951), (917, 20995), (1105, 17423), (1235, 15589), (1547, 12445), (1615, 11921), (1703, 11305), (1729, 11135), (2227, 8645), (2261, 8515), (2489, 7735), (4199, 4585)]