279989675

素因数分解:

$5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 426794112

約数和(自身を除く): 146804437

約数列:

[1, 5, 7, 25, 31, 35, 49, 73, 101, 155, 175, 217, 245, 365, 505, 511, 707, 775, 1085, 1225, 1519, 1825, 2263, 2525, 2555, 3131, 3535, 3577, 4949, 5425, 7373, 7595, 11315, 12775, 15655, 15841, 17675, 17885, 21917, 24745, 36865, 37975, 51611, 56575, 78275, 79205, 89425, 109585, 110887, 123725, 153419, 184325, 228563, 258055, 361277, 396025, 547925, 554435, 767095, 1142815, 1290275, 1599941, 1806385, 2772175, 3835475, 5714075, 7999705, 9031925, 11199587, 39998525, 55997935, 279989675]

約数ペア:

[(1, 279989675), (5, 55997935), (7, 39998525), (25, 11199587), (31, 9031925), (35, 7999705), (49, 5714075), (73, 3835475), (101, 2772175), (155, 1806385), (175, 1599941), (217, 1290275), (245, 1142815), (365, 767095), (505, 554435), (511, 547925), (707, 396025), (775, 361277), (1085, 258055), (1225, 228563), (1519, 184325), (1825, 153419), (2263, 123725), (2525, 110887), (2555, 109585), (3131, 89425), (3535, 79205), (3577, 78275), (4949, 56575), (5425, 51611), (7373, 37975), (7595, 36865), (11315, 24745), (12775, 21917), (15655, 17885), (15841, 17675)]