20212937640

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{891223}}^1$

素因数の和:891253

約数の個数: 160

約数和(自身を含む): 77643434880

約数和(自身を除く): 57430497240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 252, 270, 280, 315, 324, 360, 378, 405, 420, 504, 540, 567, 630, 648, 756, 810, 840, 945, 1080, 1134, 1260, 1512, 1620, 1890, 2268, 2520, 2835, 3240, 3780, 4536, 5670, 7560, 11340, 22680, 891223, 1782446, 2673669, 3564892, 4456115, 5347338, 6238561, 7129784, 8021007, 8912230, 10694676, 12477122, 13368345, 16042014, 17824460, 18715683, 21389352, 24063021, 24954244, 26736690, 31192805, 32084028, 35648920, 37431366, 40105035, 48126042, 49908488, 53473380, 56147049, 62385610, 64168056, 72189063, 74862732, 80210070, 93578415, 96252084, 106946760, 112294098, 120315105, 124771220, 144378126, 149725464, 160420140, 168441147, 187156830, 192504168, 224588196, 240630210, 249542440, 280735245, 288756252, 320840280, 336882294, 360945315, 374313660, 449176392, 481260420, 505323441, 561470490, 577512504, 673764588, 721890630, 748627320, 842205735, 962520840, 1010646882, 1122940980, 1347529176, 1443781260, 1684411470, 2021293764, 2245881960, 2526617205, 2887562520, 3368822940, 4042587528, 5053234410, 6737645880, 10106468820, 20212937640]

約数ペア:

[(1, 20212937640), (2, 10106468820), (3, 6737645880), (4, 5053234410), (5, 4042587528), (6, 3368822940), (7, 2887562520), (8, 2526617205), (9, 2245881960), (10, 2021293764), (12, 1684411470), (14, 1443781260), (15, 1347529176), (18, 1122940980), (20, 1010646882), (21, 962520840), (24, 842205735), (27, 748627320), (28, 721890630), (30, 673764588), (35, 577512504), (36, 561470490), (40, 505323441), (42, 481260420), (45, 449176392), (54, 374313660), (56, 360945315), (60, 336882294), (63, 320840280), (70, 288756252), (72, 280735245), (81, 249542440), (84, 240630210), (90, 224588196), (105, 192504168), (108, 187156830), (120, 168441147), (126, 160420140), (135, 149725464), (140, 144378126), (162, 124771220), (168, 120315105), (180, 112294098), (189, 106946760), (210, 96252084), (216, 93578415), (252, 80210070), (270, 74862732), (280, 72189063), (315, 64168056), (324, 62385610), (360, 56147049), (378, 53473380), (405, 49908488), (420, 48126042), (504, 40105035), (540, 37431366), (567, 35648920), (630, 32084028), (648, 31192805), (756, 26736690), (810, 24954244), (840, 24063021), (945, 21389352), (1080, 18715683), (1134, 17824460), (1260, 16042014), (1512, 13368345), (1620, 12477122), (1890, 10694676), (2268, 8912230), (2520, 8021007), (2835, 7129784), (3240, 6238561), (3780, 5347338), (4536, 4456115), (5670, 3564892), (7560, 2673669), (11340, 1782446), (22680, 891223)]