28383225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 51788352

約数和(自身を除く): 23405127

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 129, 195, 215, 325, 559, 645, 677, 975, 1075, 1677, 2031, 2795, 3225, 3385, 8385, 8801, 10155, 13975, 16925, 26403, 29111, 41925, 44005, 50775, 87333, 132015, 145555, 220025, 378443, 436665, 660075, 727775, 1135329, 1892215, 2183325, 5676645, 9461075, 28383225]

約数ペア:

[(1, 28383225), (3, 9461075), (5, 5676645), (13, 2183325), (15, 1892215), (25, 1135329), (39, 727775), (43, 660075), (65, 436665), (75, 378443), (129, 220025), (195, 145555), (215, 132015), (325, 87333), (559, 50775), (645, 44005), (677, 41925), (975, 29111), (1075, 26403), (1677, 16925), (2031, 13975), (2795, 10155), (3225, 8801), (3385, 8385)]