420800835

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 868847616

約数和(自身を除く): 448046781

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 41, 65, 73, 91, 103, 105, 123, 195, 205, 219, 273, 287, 309, 365, 455, 511, 515, 533, 615, 721, 861, 949, 1095, 1339, 1365, 1435, 1533, 1545, 1599, 2163, 2555, 2665, 2847, 2993, 3605, 3731, 4017, 4223, 4305, 4745, 6643, 6695, 7519, 7665, 7995, 8979, 9373, 10815, 11193, 12669, 14235, 14965, 18655, 19929, 20085, 20951, 21115, 22557, 28119, 29561, 33215, 37595, 38909, 44895, 46865, 52633, 54899, 55965, 62853, 63345, 88683, 97747, 99645, 104755, 112785, 116727, 140595, 147805, 157899, 164697, 194545, 263165, 272363, 274495, 293241, 308279, 314265, 384293, 443415, 488735, 583635, 684229, 789495, 817089, 823485, 924837, 1152879, 1361815, 1466205, 1541395, 1921465, 2052687, 2157953, 3421145, 4007627, 4085445, 4624185, 5764395, 6473859, 10263435, 10789765, 12022881, 20038135, 28053389, 32369295, 60114405, 84160167, 140266945, 420800835]

約数ペア:

[(1, 420800835), (3, 140266945), (5, 84160167), (7, 60114405), (13, 32369295), (15, 28053389), (21, 20038135), (35, 12022881), (39, 10789765), (41, 10263435), (65, 6473859), (73, 5764395), (91, 4624185), (103, 4085445), (105, 4007627), (123, 3421145), (195, 2157953), (205, 2052687), (219, 1921465), (273, 1541395), (287, 1466205), (309, 1361815), (365, 1152879), (455, 924837), (511, 823485), (515, 817089), (533, 789495), (615, 684229), (721, 583635), (861, 488735), (949, 443415), (1095, 384293), (1339, 314265), (1365, 308279), (1435, 293241), (1533, 274495), (1545, 272363), (1599, 263165), (2163, 194545), (2555, 164697), (2665, 157899), (2847, 147805), (2993, 140595), (3605, 116727), (3731, 112785), (4017, 104755), (4223, 99645), (4305, 97747), (4745, 88683), (6643, 63345), (6695, 62853), (7519, 55965), (7665, 54899), (7995, 52633), (8979, 46865), (9373, 44895), (10815, 38909), (11193, 37595), (12669, 33215), (14235, 29561), (14965, 28119), (18655, 22557), (19929, 21115), (20085, 20951)]