1781330590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{1861}}^1$

素因数の和:2117

約数の個数: 64

約数和(自身を含む): 3566102400

約数和(自身を除く): 1784771810

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 199, 370, 398, 481, 962, 995, 1861, 1990, 2405, 2587, 3722, 4810, 5174, 7363, 9305, 12935, 14726, 18610, 24193, 25870, 36815, 48386, 68857, 73630, 95719, 120965, 137714, 191438, 241930, 344285, 370339, 478595, 688570, 740678, 895141, 957190, 1790282, 1851695, 3703390, 4475705, 4814407, 8951410, 9628814, 13702543, 24072035, 27405086, 48144070, 68512715, 137025430, 178133059, 356266118, 890665295, 1781330590]

約数ペア:

[(1, 1781330590), (2, 890665295), (5, 356266118), (10, 178133059), (13, 137025430), (26, 68512715), (37, 48144070), (65, 27405086), (74, 24072035), (130, 13702543), (185, 9628814), (199, 8951410), (370, 4814407), (398, 4475705), (481, 3703390), (962, 1851695), (995, 1790282), (1861, 957190), (1990, 895141), (2405, 740678), (2587, 688570), (3722, 478595), (4810, 370339), (5174, 344285), (7363, 241930), (9305, 191438), (12935, 137714), (14726, 120965), (18610, 95719), (24193, 73630), (25870, 68857), (36815, 48386)]