1991400480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{5381}}^1$

素因数の和:5659

約数の個数: 144

約数和(自身を含む): 6823364184

約数和(自身を除く): 4831963704

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 257, 288, 360, 480, 514, 720, 771, 1028, 1285, 1440, 1542, 2056, 2313, 2570, 3084, 3855, 4112, 4626, 5140, 5381, 6168, 7710, 8224, 9252, 10280, 10762, 11565, 12336, 15420, 16143, 18504, 20560, 21524, 23130, 24672, 26905, 30840, 32286, 37008, 41120, 43048, 46260, 48429, 53810, 61680, 64572, 74016, 80715, 86096, 92520, 96858, 107620, 123360, 129144, 161430, 172192, 185040, 193716, 215240, 242145, 258288, 322860, 370080, 387432, 430480, 484290, 516576, 645720, 774864, 860960, 968580, 1291440, 1382917, 1549728, 1937160, 2582880, 2765834, 3874320, 4148751, 5531668, 6914585, 7748640, 8297502, 11063336, 12446253, 13829170, 16595004, 20743755, 22126672, 24892506, 27658340, 33190008, 41487510, 44253344, 49785012, 55316680, 62231265, 66380016, 82975020, 99570024, 110633360, 124462530, 132760032, 165950040, 199140048, 221266720, 248925060, 331900080, 398280096, 497850120, 663800160, 995700240, 1991400480]

約数ペア:

[(1, 1991400480), (2, 995700240), (3, 663800160), (4, 497850120), (5, 398280096), (6, 331900080), (8, 248925060), (9, 221266720), (10, 199140048), (12, 165950040), (15, 132760032), (16, 124462530), (18, 110633360), (20, 99570024), (24, 82975020), (30, 66380016), (32, 62231265), (36, 55316680), (40, 49785012), (45, 44253344), (48, 41487510), (60, 33190008), (72, 27658340), (80, 24892506), (90, 22126672), (96, 20743755), (120, 16595004), (144, 13829170), (160, 12446253), (180, 11063336), (240, 8297502), (257, 7748640), (288, 6914585), (360, 5531668), (480, 4148751), (514, 3874320), (720, 2765834), (771, 2582880), (1028, 1937160), (1285, 1549728), (1440, 1382917), (1542, 1291440), (2056, 968580), (2313, 860960), (2570, 774864), (3084, 645720), (3855, 516576), (4112, 484290), (4626, 430480), (5140, 387432), (5381, 370080), (6168, 322860), (7710, 258288), (8224, 242145), (9252, 215240), (10280, 193716), (10762, 185040), (11565, 172192), (12336, 161430), (15420, 129144), (16143, 123360), (18504, 107620), (20560, 96858), (21524, 92520), (23130, 86096), (24672, 80715), (26905, 74016), (30840, 64572), (32286, 61680), (37008, 53810), (41120, 48429), (43048, 46260)]