420004760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1$

素因数の和:697

約数の個数: 128

約数和(自身を含む): 1126794240

約数和(自身を除く): 706789480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 71, 74, 140, 142, 148, 185, 259, 280, 284, 296, 355, 370, 497, 518, 568, 571, 710, 740, 994, 1036, 1142, 1295, 1420, 1480, 1988, 2072, 2284, 2485, 2590, 2627, 2840, 2855, 3976, 3997, 4568, 4970, 5180, 5254, 5710, 7994, 9940, 10360, 10508, 11420, 13135, 15988, 18389, 19880, 19985, 21016, 21127, 22840, 26270, 31976, 36778, 39970, 40541, 42254, 52540, 73556, 79940, 81082, 84508, 91945, 105080, 105635, 147112, 147889, 159880, 162164, 169016, 183890, 202705, 211270, 283787, 295778, 324328, 367780, 405410, 422540, 567574, 591556, 735560, 739445, 810820, 845080, 1135148, 1183112, 1418935, 1478890, 1500017, 1621640, 2270296, 2837870, 2957780, 3000034, 5675740, 5915560, 6000068, 7500085, 10500119, 11351480, 12000136, 15000170, 21000238, 30000340, 42000476, 52500595, 60000680, 84000952, 105001190, 210002380, 420004760]

約数ペア:

[(1, 420004760), (2, 210002380), (4, 105001190), (5, 84000952), (7, 60000680), (8, 52500595), (10, 42000476), (14, 30000340), (20, 21000238), (28, 15000170), (35, 12000136), (37, 11351480), (40, 10500119), (56, 7500085), (70, 6000068), (71, 5915560), (74, 5675740), (140, 3000034), (142, 2957780), (148, 2837870), (185, 2270296), (259, 1621640), (280, 1500017), (284, 1478890), (296, 1418935), (355, 1183112), (370, 1135148), (497, 845080), (518, 810820), (568, 739445), (571, 735560), (710, 591556), (740, 567574), (994, 422540), (1036, 405410), (1142, 367780), (1295, 324328), (1420, 295778), (1480, 283787), (1988, 211270), (2072, 202705), (2284, 183890), (2485, 169016), (2590, 162164), (2627, 159880), (2840, 147889), (2855, 147112), (3976, 105635), (3997, 105080), (4568, 91945), (4970, 84508), (5180, 81082), (5254, 79940), (5710, 73556), (7994, 52540), (9940, 42254), (10360, 40541), (10508, 39970), (11420, 36778), (13135, 31976), (15988, 26270), (18389, 22840), (19880, 21127), (19985, 21016)]