1989103675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1\times {\mathrm{449}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 2732637600

約数和(自身を除く): 743533925

約数列:

[1, 5, 13, 25, 43, 65, 215, 317, 325, 449, 559, 1075, 1585, 2245, 2795, 4121, 5837, 7925, 11225, 13631, 13975, 19307, 20605, 29185, 68155, 96535, 103025, 142333, 145925, 177203, 250991, 340775, 482675, 711665, 886015, 1254955, 1850329, 3558325, 4430075, 6120319, 6274775, 9251645, 30601595, 46258225, 79564147, 153007975, 397820735, 1989103675]

約数ペア:

[(1, 1989103675), (5, 397820735), (13, 153007975), (25, 79564147), (43, 46258225), (65, 30601595), (215, 9251645), (317, 6274775), (325, 6120319), (449, 4430075), (559, 3558325), (1075, 1850329), (1585, 1254955), (2245, 886015), (2795, 711665), (4121, 482675), (5837, 340775), (7925, 250991), (11225, 177203), (13631, 145925), (13975, 142333), (19307, 103025), (20605, 96535), (29185, 68155)]