642051225

素因数分解:

$3^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{13397}}^1$

素因数の和:13487

約数の個数: 48

約数和(自身を含む): 1196173440

約数和(自身を除く): 554122215

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 135, 213, 225, 355, 639, 675, 1065, 1775, 1917, 3195, 5325, 9585, 13397, 15975, 40191, 47925, 66985, 120573, 200955, 334925, 361719, 602865, 951187, 1004775, 1808595, 2853561, 3014325, 4755935, 8560683, 9042975, 14267805, 23779675, 25682049, 42803415, 71339025, 128410245, 214017075, 642051225]

約数ペア:

[(1, 642051225), (3, 214017075), (5, 128410245), (9, 71339025), (15, 42803415), (25, 25682049), (27, 23779675), (45, 14267805), (71, 9042975), (75, 8560683), (135, 4755935), (213, 3014325), (225, 2853561), (355, 1808595), (639, 1004775), (675, 951187), (1065, 602865), (1775, 361719), (1917, 334925), (3195, 200955), (5325, 120573), (9585, 66985), (13397, 47925), (15975, 40191)]