79705980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1723}}^1$

素因数の和:1995

約数の個数: 72

約数和(自身を含む): 242856432

約数和(自身を除く): 163150452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 257, 514, 771, 1028, 1285, 1542, 1723, 2313, 2570, 3084, 3446, 3855, 4626, 5140, 5169, 6892, 7710, 8615, 9252, 10338, 11565, 15420, 15507, 17230, 20676, 23130, 25845, 31014, 34460, 46260, 51690, 62028, 77535, 103380, 155070, 310140, 442811, 885622, 1328433, 1771244, 2214055, 2656866, 3985299, 4428110, 5313732, 6642165, 7970598, 8856220, 13284330, 15941196, 19926495, 26568660, 39852990, 79705980]

約数ペア:

[(1, 79705980), (2, 39852990), (3, 26568660), (4, 19926495), (5, 15941196), (6, 13284330), (9, 8856220), (10, 7970598), (12, 6642165), (15, 5313732), (18, 4428110), (20, 3985299), (30, 2656866), (36, 2214055), (45, 1771244), (60, 1328433), (90, 885622), (180, 442811), (257, 310140), (514, 155070), (771, 103380), (1028, 77535), (1285, 62028), (1542, 51690), (1723, 46260), (2313, 34460), (2570, 31014), (3084, 25845), (3446, 23130), (3855, 20676), (4626, 17230), (5140, 15507), (5169, 15420), (6892, 11565), (7710, 10338), (8615, 9252)]