420541520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1511}}^1$

素因数の和:1609

約数の個数: 120

約数和(自身を含む): 1154176128

約数和(自身を除く): 733634608

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 71, 80, 98, 112, 140, 142, 196, 245, 280, 284, 355, 392, 490, 497, 560, 568, 710, 784, 980, 994, 1136, 1420, 1511, 1960, 1988, 2485, 2840, 3022, 3479, 3920, 3976, 4970, 5680, 6044, 6958, 7555, 7952, 9940, 10577, 12088, 13916, 15110, 17395, 19880, 21154, 24176, 27832, 30220, 34790, 39760, 42308, 52885, 55664, 60440, 69580, 74039, 84616, 105770, 107281, 120880, 139160, 148078, 169232, 211540, 214562, 278320, 296156, 370195, 423080, 429124, 536405, 592312, 740390, 750967, 846160, 858248, 1072810, 1184624, 1480780, 1501934, 1716496, 2145620, 2961560, 3003868, 3754835, 4291240, 5256769, 5923120, 6007736, 7509670, 8582480, 10513538, 12015472, 15019340, 21027076, 26283845, 30038680, 42054152, 52567690, 60077360, 84108304, 105135380, 210270760, 420541520]

約数ペア:

[(1, 420541520), (2, 210270760), (4, 105135380), (5, 84108304), (7, 60077360), (8, 52567690), (10, 42054152), (14, 30038680), (16, 26283845), (20, 21027076), (28, 15019340), (35, 12015472), (40, 10513538), (49, 8582480), (56, 7509670), (70, 6007736), (71, 5923120), (80, 5256769), (98, 4291240), (112, 3754835), (140, 3003868), (142, 2961560), (196, 2145620), (245, 1716496), (280, 1501934), (284, 1480780), (355, 1184624), (392, 1072810), (490, 858248), (497, 846160), (560, 750967), (568, 740390), (710, 592312), (784, 536405), (980, 429124), (994, 423080), (1136, 370195), (1420, 296156), (1511, 278320), (1960, 214562), (1988, 211540), (2485, 169232), (2840, 148078), (3022, 139160), (3479, 120880), (3920, 107281), (3976, 105770), (4970, 84616), (5680, 74039), (6044, 69580), (6958, 60440), (7555, 55664), (7952, 52885), (9940, 42308), (10577, 39760), (12088, 34790), (13916, 30220), (15110, 27832), (17395, 24176), (19880, 21154)]