405156920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1811}}^1$

素因数の和:1893

約数の個数: 128

約数和(自身を含む): 1127208960

約数和(自身を除く): 722052040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 47, 56, 68, 70, 85, 94, 119, 136, 140, 170, 188, 235, 238, 280, 329, 340, 376, 470, 476, 595, 658, 680, 799, 940, 952, 1190, 1316, 1598, 1645, 1811, 1880, 2380, 2632, 3196, 3290, 3622, 3995, 4760, 5593, 6392, 6580, 7244, 7990, 9055, 11186, 12677, 13160, 14488, 15980, 18110, 22372, 25354, 27965, 30787, 31960, 36220, 44744, 50708, 55930, 61574, 63385, 72440, 85117, 101416, 111860, 123148, 126770, 153935, 170234, 215509, 223720, 246296, 253540, 307870, 340468, 425585, 431018, 507080, 595819, 615740, 680936, 851170, 862036, 1077545, 1191638, 1231480, 1446989, 1702340, 1724072, 2155090, 2383276, 2893978, 2979095, 3404680, 4310180, 4766552, 5787956, 5958190, 7234945, 8620360, 10128923, 11575912, 11916380, 14469890, 20257846, 23832760, 28939780, 40515692, 50644615, 57879560, 81031384, 101289230, 202578460, 405156920]

約数ペア:

[(1, 405156920), (2, 202578460), (4, 101289230), (5, 81031384), (7, 57879560), (8, 50644615), (10, 40515692), (14, 28939780), (17, 23832760), (20, 20257846), (28, 14469890), (34, 11916380), (35, 11575912), (40, 10128923), (47, 8620360), (56, 7234945), (68, 5958190), (70, 5787956), (85, 4766552), (94, 4310180), (119, 3404680), (136, 2979095), (140, 2893978), (170, 2383276), (188, 2155090), (235, 1724072), (238, 1702340), (280, 1446989), (329, 1231480), (340, 1191638), (376, 1077545), (470, 862036), (476, 851170), (595, 680936), (658, 615740), (680, 595819), (799, 507080), (940, 431018), (952, 425585), (1190, 340468), (1316, 307870), (1598, 253540), (1645, 246296), (1811, 223720), (1880, 215509), (2380, 170234), (2632, 153935), (3196, 126770), (3290, 123148), (3622, 111860), (3995, 101416), (4760, 85117), (5593, 72440), (6392, 63385), (6580, 61574), (7244, 55930), (7990, 50708), (9055, 44744), (11186, 36220), (12677, 31960), (13160, 30787), (14488, 27965), (15980, 25354), (18110, 22372)]