42178725

素因数分解:

$3^5\times 5^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 80432352

約数和(自身を除く): 38253627

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 53, 75, 81, 131, 135, 159, 225, 243, 265, 393, 405, 477, 655, 675, 795, 1179, 1215, 1325, 1431, 1965, 2025, 2385, 3275, 3537, 3975, 4293, 5895, 6075, 6943, 7155, 9825, 10611, 11925, 12879, 17685, 20829, 21465, 29475, 31833, 34715, 35775, 53055, 62487, 64395, 88425, 104145, 107325, 159165, 173575, 187461, 265275, 312435, 321975, 520725, 562383, 795825, 937305, 1562175, 1687149, 2811915, 4686525, 8435745, 14059575, 42178725]

約数ペア:

[(1, 42178725), (3, 14059575), (5, 8435745), (9, 4686525), (15, 2811915), (25, 1687149), (27, 1562175), (45, 937305), (53, 795825), (75, 562383), (81, 520725), (131, 321975), (135, 312435), (159, 265275), (225, 187461), (243, 173575), (265, 159165), (393, 107325), (405, 104145), (477, 88425), (655, 64395), (675, 62487), (795, 53055), (1179, 35775), (1215, 34715), (1325, 31833), (1431, 29475), (1965, 21465), (2025, 20829), (2385, 17685), (3275, 12879), (3537, 11925), (3975, 10611), (4293, 9825), (5895, 7155), (6075, 6943)]