27869375

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 40

約数和(自身を含む): 38350224

約数和(自身を除く): 10480849

約数列:

[1, 5, 17, 25, 43, 61, 85, 125, 215, 305, 425, 625, 731, 1037, 1075, 1525, 2125, 2623, 3655, 5185, 5375, 7625, 10625, 13115, 18275, 25925, 26875, 38125, 44591, 65575, 91375, 129625, 222955, 327875, 456875, 648125, 1114775, 1639375, 5573875, 27869375]

約数ペア:

[(1, 27869375), (5, 5573875), (17, 1639375), (25, 1114775), (43, 648125), (61, 456875), (85, 327875), (125, 222955), (215, 129625), (305, 91375), (425, 65575), (625, 44591), (731, 38125), (1037, 26875), (1075, 25925), (1525, 18275), (2125, 13115), (2623, 10625), (3655, 7625), (5185, 5375)]