71322225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 135607392

約数和(自身を除く): 64285167

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 169, 195, 221, 255, 325, 331, 425, 507, 663, 845, 975, 993, 1105, 1275, 1655, 2535, 2873, 3315, 4225, 4303, 4965, 5525, 5627, 8275, 8619, 12675, 12909, 14365, 16575, 16881, 21515, 24825, 28135, 43095, 55939, 64545, 71825, 73151, 84405, 107575, 140675, 167817, 215475, 219453, 279695, 322725, 365755, 422025, 839085, 950963, 1097265, 1398475, 1828775, 2852889, 4195425, 4754815, 5486325, 14264445, 23774075, 71322225]

約数ペア:

[(1, 71322225), (3, 23774075), (5, 14264445), (13, 5486325), (15, 4754815), (17, 4195425), (25, 2852889), (39, 1828775), (51, 1398475), (65, 1097265), (75, 950963), (85, 839085), (169, 422025), (195, 365755), (221, 322725), (255, 279695), (325, 219453), (331, 215475), (425, 167817), (507, 140675), (663, 107575), (845, 84405), (975, 73151), (993, 71825), (1105, 64545), (1275, 55939), (1655, 43095), (2535, 28135), (2873, 24825), (3315, 21515), (4225, 16881), (4303, 16575), (4965, 14365), (5525, 12909), (5627, 12675), (8275, 8619)]