20888731980

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{252829}}^1$

素因数の和:252870

約数の個数: 144

約数和(自身を含む): 69574770720

約数和(自身を除く): 48686038740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 135, 153, 162, 170, 180, 204, 243, 255, 270, 306, 324, 340, 405, 459, 486, 510, 540, 612, 765, 810, 918, 972, 1020, 1215, 1377, 1530, 1620, 1836, 2295, 2430, 2754, 3060, 4131, 4590, 4860, 5508, 6885, 8262, 9180, 13770, 16524, 20655, 27540, 41310, 82620, 252829, 505658, 758487, 1011316, 1264145, 1516974, 2275461, 2528290, 3033948, 3792435, 4298093, 4550922, 5056580, 6826383, 7584870, 8596186, 9101844, 11377305, 12894279, 13652766, 15169740, 17192372, 20479149, 21490465, 22754610, 25788558, 27305532, 34131915, 38682837, 40958298, 42980930, 45509220, 51577116, 61437447, 64471395, 68263830, 77365674, 81916596, 85961860, 102395745, 116048511, 122874894, 128942790, 136527660, 154731348, 193414185, 204791490, 232097022, 245749788, 257885580, 307187235, 348145533, 386828370, 409582980, 464194044, 580242555, 614374470, 696291066, 773656740, 1044436599, 1160485110, 1228748940, 1392582132, 1740727665, 2088873198, 2320970220, 3481455330, 4177746396, 5222182995, 6962910660, 10444365990, 20888731980]

約数ペア:

[(1, 20888731980), (2, 10444365990), (3, 6962910660), (4, 5222182995), (5, 4177746396), (6, 3481455330), (9, 2320970220), (10, 2088873198), (12, 1740727665), (15, 1392582132), (17, 1228748940), (18, 1160485110), (20, 1044436599), (27, 773656740), (30, 696291066), (34, 614374470), (36, 580242555), (45, 464194044), (51, 409582980), (54, 386828370), (60, 348145533), (68, 307187235), (81, 257885580), (85, 245749788), (90, 232097022), (102, 204791490), (108, 193414185), (135, 154731348), (153, 136527660), (162, 128942790), (170, 122874894), (180, 116048511), (204, 102395745), (243, 85961860), (255, 81916596), (270, 77365674), (306, 68263830), (324, 64471395), (340, 61437447), (405, 51577116), (459, 45509220), (486, 42980930), (510, 40958298), (540, 38682837), (612, 34131915), (765, 27305532), (810, 25788558), (918, 22754610), (972, 21490465), (1020, 20479149), (1215, 17192372), (1377, 15169740), (1530, 13652766), (1620, 12894279), (1836, 11377305), (2295, 9101844), (2430, 8596186), (2754, 7584870), (3060, 6826383), (4131, 5056580), (4590, 4550922), (4860, 4298093), (5508, 3792435), (6885, 3033948), (8262, 2528290), (9180, 2275461), (13770, 1516974), (16524, 1264145), (20655, 1011316), (27540, 758487), (41310, 505658), (82620, 252829)]