81437625

素因数分解:

$3^2\times 5^3\times {\mathrm{191}}^1\times {\mathrm{379}}^1$

素因数の和:591

約数の個数: 48

約数和(自身を含む): 147962880

約数和(自身を除く): 66525255

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 191, 225, 375, 379, 573, 955, 1125, 1137, 1719, 1895, 2865, 3411, 4775, 5685, 8595, 9475, 14325, 17055, 23875, 28425, 42975, 47375, 71625, 72389, 85275, 142125, 214875, 217167, 361945, 426375, 651501, 1085835, 1809725, 3257505, 5429175, 9048625, 16287525, 27145875, 81437625]

約数ペア:

[(1, 81437625), (3, 27145875), (5, 16287525), (9, 9048625), (15, 5429175), (25, 3257505), (45, 1809725), (75, 1085835), (125, 651501), (191, 426375), (225, 361945), (375, 217167), (379, 214875), (573, 142125), (955, 85275), (1125, 72389), (1137, 71625), (1719, 47375), (1895, 42975), (2865, 28425), (3411, 23875), (4775, 17055), (5685, 14325), (8595, 9475)]