81249350

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2551}}^1$

素因数の和:2590

約数の個数: 72

約数和(自身を含む): 189394128

約数和(自身を除く): 108144778

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 49, 50, 65, 70, 91, 98, 130, 175, 182, 245, 325, 350, 455, 490, 637, 650, 910, 1225, 1274, 2275, 2450, 2551, 3185, 4550, 5102, 6370, 12755, 15925, 17857, 25510, 31850, 33163, 35714, 63775, 66326, 89285, 124999, 127550, 165815, 178570, 232141, 249998, 331630, 446425, 464282, 624995, 829075, 892850, 1160705, 1249990, 1624987, 1658150, 2321410, 3124975, 3249974, 5803525, 6249950, 8124935, 11607050, 16249870, 40624675, 81249350]

約数ペア:

[(1, 81249350), (2, 40624675), (5, 16249870), (7, 11607050), (10, 8124935), (13, 6249950), (14, 5803525), (25, 3249974), (26, 3124975), (35, 2321410), (49, 1658150), (50, 1624987), (65, 1249990), (70, 1160705), (91, 892850), (98, 829075), (130, 624995), (175, 464282), (182, 446425), (245, 331630), (325, 249998), (350, 232141), (455, 178570), (490, 165815), (637, 127550), (650, 124999), (910, 89285), (1225, 66326), (1274, 63775), (2275, 35714), (2450, 33163), (2551, 31850), (3185, 25510), (4550, 17857), (5102, 15925), (6370, 12755)]