90968080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2663}}^1$

素因数の和:2744

約数の個数: 80

約数和(自身を含む): 245769984

約数和(自身を除く): 154801904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 2135, 2440, 2663, 3416, 4270, 4880, 5326, 6832, 8540, 10652, 13315, 17080, 18641, 21304, 26630, 34160, 37282, 42608, 53260, 74564, 93205, 106520, 149128, 162443, 186410, 213040, 298256, 324886, 372820, 649772, 745640, 812215, 1137101, 1299544, 1491280, 1624430, 2274202, 2599088, 3248860, 4548404, 5685505, 6497720, 9096808, 11371010, 12995440, 18193616, 22742020, 45484040, 90968080]

約数ペア:

[(1, 90968080), (2, 45484040), (4, 22742020), (5, 18193616), (7, 12995440), (8, 11371010), (10, 9096808), (14, 6497720), (16, 5685505), (20, 4548404), (28, 3248860), (35, 2599088), (40, 2274202), (56, 1624430), (61, 1491280), (70, 1299544), (80, 1137101), (112, 812215), (122, 745640), (140, 649772), (244, 372820), (280, 324886), (305, 298256), (427, 213040), (488, 186410), (560, 162443), (610, 149128), (854, 106520), (976, 93205), (1220, 74564), (1708, 53260), (2135, 42608), (2440, 37282), (2663, 34160), (3416, 26630), (4270, 21304), (4880, 18641), (5326, 17080), (6832, 13315), (8540, 10652)]