28449075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 50862816

約数和(自身を除く): 22413741

約数列:

[1, 3, 5, 15, 17, 25, 51, 53, 75, 85, 159, 255, 265, 421, 425, 795, 901, 1263, 1275, 1325, 2105, 2703, 3975, 4505, 6315, 7157, 10525, 13515, 21471, 22313, 22525, 31575, 35785, 66939, 67575, 107355, 111565, 178925, 334695, 379321, 536775, 557825, 1137963, 1673475, 1896605, 5689815, 9483025, 28449075]

約数ペア:

[(1, 28449075), (3, 9483025), (5, 5689815), (15, 1896605), (17, 1673475), (25, 1137963), (51, 557825), (53, 536775), (75, 379321), (85, 334695), (159, 178925), (255, 111565), (265, 107355), (421, 67575), (425, 66939), (795, 35785), (901, 31575), (1263, 22525), (1275, 22313), (1325, 21471), (2105, 13515), (2703, 10525), (3975, 7157), (4505, 6315)]