19703000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:118

約数の個数: 128

約数和(自身を含む): 52228800

約数和(自身を除く): 32525800

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 25, 34, 38, 40, 50, 61, 68, 76, 85, 95, 100, 122, 125, 136, 152, 170, 190, 200, 244, 250, 305, 323, 340, 380, 425, 475, 488, 500, 610, 646, 680, 760, 850, 950, 1000, 1037, 1159, 1220, 1292, 1525, 1615, 1700, 1900, 2074, 2125, 2318, 2375, 2440, 2584, 3050, 3230, 3400, 3800, 4148, 4250, 4636, 4750, 5185, 5795, 6100, 6460, 7625, 8075, 8296, 8500, 9272, 9500, 10370, 11590, 12200, 12920, 15250, 16150, 17000, 19000, 19703, 20740, 23180, 25925, 28975, 30500, 32300, 39406, 40375, 41480, 46360, 51850, 57950, 61000, 64600, 78812, 80750, 98515, 103700, 115900, 129625, 144875, 157624, 161500, 197030, 207400, 231800, 259250, 289750, 323000, 394060, 492575, 518500, 579500, 788120, 985150, 1037000, 1159000, 1970300, 2462875, 3940600, 4925750, 9851500, 19703000]

約数ペア:

[(1, 19703000), (2, 9851500), (4, 4925750), (5, 3940600), (8, 2462875), (10, 1970300), (17, 1159000), (19, 1037000), (20, 985150), (25, 788120), (34, 579500), (38, 518500), (40, 492575), (50, 394060), (61, 323000), (68, 289750), (76, 259250), (85, 231800), (95, 207400), (100, 197030), (122, 161500), (125, 157624), (136, 144875), (152, 129625), (170, 115900), (190, 103700), (200, 98515), (244, 80750), (250, 78812), (305, 64600), (323, 61000), (340, 57950), (380, 51850), (425, 46360), (475, 41480), (488, 40375), (500, 39406), (610, 32300), (646, 30500), (680, 28975), (760, 25925), (850, 23180), (950, 20740), (1000, 19703), (1037, 19000), (1159, 17000), (1220, 16150), (1292, 15250), (1525, 12920), (1615, 12200), (1700, 11590), (1900, 10370), (2074, 9500), (2125, 9272), (2318, 8500), (2375, 8296), (2440, 8075), (2584, 7625), (3050, 6460), (3230, 6100), (3400, 5795), (3800, 5185), (4148, 4750), (4250, 4636)]