2154137880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1\times {\mathrm{439}}^1$

素因数の和:953

約数の個数: 128

約数和(自身を含む): 6556492800

約数和(自身を除く): 4402354920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 397, 412, 439, 515, 618, 794, 824, 878, 1030, 1191, 1236, 1317, 1545, 1588, 1756, 1985, 2060, 2195, 2382, 2472, 2634, 3090, 3176, 3512, 3970, 4120, 4390, 4764, 5268, 5955, 6180, 6585, 7940, 8780, 9528, 10536, 11910, 12360, 13170, 15880, 17560, 23820, 26340, 40891, 45217, 47640, 52680, 81782, 90434, 122673, 135651, 163564, 174283, 180868, 204455, 226085, 245346, 271302, 327128, 348566, 361736, 408910, 452170, 490692, 522849, 542604, 613365, 678255, 697132, 817820, 871415, 904340, 981384, 1045698, 1085208, 1226730, 1356510, 1394264, 1635640, 1742830, 1808680, 2091396, 2453460, 2614245, 2713020, 3485660, 4182792, 4906920, 5228490, 5426040, 6971320, 10456980, 17951149, 20913960, 35902298, 53853447, 71804596, 89755745, 107706894, 143609192, 179511490, 215413788, 269267235, 359022980, 430827576, 538534470, 718045960, 1077068940, 2154137880]

約数ペア:

[(1, 2154137880), (2, 1077068940), (3, 718045960), (4, 538534470), (5, 430827576), (6, 359022980), (8, 269267235), (10, 215413788), (12, 179511490), (15, 143609192), (20, 107706894), (24, 89755745), (30, 71804596), (40, 53853447), (60, 35902298), (103, 20913960), (120, 17951149), (206, 10456980), (309, 6971320), (397, 5426040), (412, 5228490), (439, 4906920), (515, 4182792), (618, 3485660), (794, 2713020), (824, 2614245), (878, 2453460), (1030, 2091396), (1191, 1808680), (1236, 1742830), (1317, 1635640), (1545, 1394264), (1588, 1356510), (1756, 1226730), (1985, 1085208), (2060, 1045698), (2195, 981384), (2382, 904340), (2472, 871415), (2634, 817820), (3090, 697132), (3176, 678255), (3512, 613365), (3970, 542604), (4120, 522849), (4390, 490692), (4764, 452170), (5268, 408910), (5955, 361736), (6180, 348566), (6585, 327128), (7940, 271302), (8780, 245346), (9528, 226085), (10536, 204455), (11910, 180868), (12360, 174283), (13170, 163564), (15880, 135651), (17560, 122673), (23820, 90434), (26340, 81782), (40891, 52680), (45217, 47640)]