1279589680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1\times {\mathrm{997}}^1$

素因数の和:1334

約数の個数: 80

約数和(自身を含む): 3038359104

約数和(自身を除く): 1758769424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 263, 305, 488, 526, 610, 976, 997, 1052, 1220, 1315, 1994, 2104, 2440, 2630, 3988, 4208, 4880, 4985, 5260, 7976, 9970, 10520, 15952, 16043, 19940, 21040, 32086, 39880, 60817, 64172, 79760, 80215, 121634, 128344, 160430, 243268, 256688, 262211, 304085, 320860, 486536, 524422, 608170, 641720, 973072, 1048844, 1216340, 1283440, 1311055, 2097688, 2432680, 2622110, 4195376, 4865360, 5244220, 10488440, 15994871, 20976880, 31989742, 63979484, 79974355, 127958968, 159948710, 255917936, 319897420, 639794840, 1279589680]

約数ペア:

[(1, 1279589680), (2, 639794840), (4, 319897420), (5, 255917936), (8, 159948710), (10, 127958968), (16, 79974355), (20, 63979484), (40, 31989742), (61, 20976880), (80, 15994871), (122, 10488440), (244, 5244220), (263, 4865360), (305, 4195376), (488, 2622110), (526, 2432680), (610, 2097688), (976, 1311055), (997, 1283440), (1052, 1216340), (1220, 1048844), (1315, 973072), (1994, 641720), (2104, 608170), (2440, 524422), (2630, 486536), (3988, 320860), (4208, 304085), (4880, 262211), (4985, 256688), (5260, 243268), (7976, 160430), (9970, 128344), (10520, 121634), (15952, 80215), (16043, 79760), (19940, 64172), (21040, 60817), (32086, 39880)]