20104985520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{900761}}^1$

素因数の和:900811

約数の個数: 120

約数和(自身を含む): 69697360512

約数和(自身を除く): 49592374992

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1395, 1488, 1860, 2232, 2480, 2790, 3720, 4464, 5580, 7440, 11160, 22320, 900761, 1801522, 2702283, 3603044, 4503805, 5404566, 7206088, 8106849, 9007610, 10809132, 13511415, 14412176, 16213698, 18015220, 21618264, 27022830, 27923591, 32427396, 36030440, 40534245, 43236528, 54045660, 55847182, 64854792, 72060880, 81068490, 83770773, 108091320, 111694364, 129709584, 139617955, 162136980, 167541546, 216182640, 223388728, 251312319, 279235910, 324273960, 335083092, 418853865, 446777456, 502624638, 558471820, 648547920, 670166184, 837707730, 1005249276, 1116943640, 1256561595, 1340332368, 1675415460, 2010498552, 2233887280, 2513123190, 3350830920, 4020997104, 5026246380, 6701661840, 10052492760, 20104985520]

約数ペア:

[(1, 20104985520), (2, 10052492760), (3, 6701661840), (4, 5026246380), (5, 4020997104), (6, 3350830920), (8, 2513123190), (9, 2233887280), (10, 2010498552), (12, 1675415460), (15, 1340332368), (16, 1256561595), (18, 1116943640), (20, 1005249276), (24, 837707730), (30, 670166184), (31, 648547920), (36, 558471820), (40, 502624638), (45, 446777456), (48, 418853865), (60, 335083092), (62, 324273960), (72, 279235910), (80, 251312319), (90, 223388728), (93, 216182640), (120, 167541546), (124, 162136980), (144, 139617955), (155, 129709584), (180, 111694364), (186, 108091320), (240, 83770773), (248, 81068490), (279, 72060880), (310, 64854792), (360, 55847182), (372, 54045660), (465, 43236528), (496, 40534245), (558, 36030440), (620, 32427396), (720, 27923591), (744, 27022830), (930, 21618264), (1116, 18015220), (1240, 16213698), (1395, 14412176), (1488, 13511415), (1860, 10809132), (2232, 9007610), (2480, 8106849), (2790, 7206088), (3720, 5404566), (4464, 4503805), (5580, 3603044), (7440, 2702283), (11160, 1801522), (22320, 900761)]