27921225

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 49818240

約数和(自身を除く): 21897015

約数列:

[1, 3, 5, 15, 17, 25, 51, 61, 75, 85, 183, 255, 305, 359, 425, 915, 1037, 1077, 1275, 1525, 1795, 3111, 4575, 5185, 5385, 6103, 8975, 15555, 18309, 21899, 25925, 26925, 30515, 65697, 77775, 91545, 109495, 152575, 328485, 372283, 457725, 547475, 1116849, 1642425, 1861415, 5584245, 9307075, 27921225]

約数ペア:

[(1, 27921225), (3, 9307075), (5, 5584245), (15, 1861415), (17, 1642425), (25, 1116849), (51, 547475), (61, 457725), (75, 372283), (85, 328485), (183, 152575), (255, 109495), (305, 91545), (359, 77775), (425, 65697), (915, 30515), (1037, 26925), (1077, 25925), (1275, 21899), (1525, 18309), (1795, 15555), (3111, 8975), (4575, 6103), (5185, 5385)]