221275520

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{587}}^1$

素因数の和:656

約数の個数: 128

約数和(自身を含む): 575769600

約数和(自身を除く): 354494080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 190, 248, 304, 310, 320, 380, 496, 587, 589, 608, 620, 640, 760, 992, 1174, 1178, 1216, 1240, 1520, 1984, 2348, 2356, 2432, 2480, 2935, 2945, 3040, 3968, 4696, 4712, 4960, 5870, 5890, 6080, 9392, 9424, 9920, 11153, 11740, 11780, 12160, 18197, 18784, 18848, 19840, 22306, 23480, 23560, 36394, 37568, 37696, 44612, 46960, 47120, 55765, 72788, 75136, 75392, 89224, 90985, 93920, 94240, 111530, 145576, 178448, 181970, 187840, 188480, 223060, 291152, 345743, 356896, 363940, 375680, 376960, 446120, 582304, 691486, 713792, 727880, 892240, 1164608, 1382972, 1427584, 1455760, 1728715, 1784480, 2329216, 2765944, 2911520, 3457430, 3568960, 5531888, 5823040, 6914860, 7137920, 11063776, 11646080, 13829720, 22127552, 27659440, 44255104, 55318880, 110637760, 221275520]

約数ペア:

[(1, 221275520), (2, 110637760), (4, 55318880), (5, 44255104), (8, 27659440), (10, 22127552), (16, 13829720), (19, 11646080), (20, 11063776), (31, 7137920), (32, 6914860), (38, 5823040), (40, 5531888), (62, 3568960), (64, 3457430), (76, 2911520), (80, 2765944), (95, 2329216), (124, 1784480), (128, 1728715), (152, 1455760), (155, 1427584), (160, 1382972), (190, 1164608), (248, 892240), (304, 727880), (310, 713792), (320, 691486), (380, 582304), (496, 446120), (587, 376960), (589, 375680), (608, 363940), (620, 356896), (640, 345743), (760, 291152), (992, 223060), (1174, 188480), (1178, 187840), (1216, 181970), (1240, 178448), (1520, 145576), (1984, 111530), (2348, 94240), (2356, 93920), (2432, 90985), (2480, 89224), (2935, 75392), (2945, 75136), (3040, 72788), (3968, 55765), (4696, 47120), (4712, 46960), (4960, 44612), (5870, 37696), (5890, 37568), (6080, 36394), (9392, 23560), (9424, 23480), (9920, 22306), (11153, 19840), (11740, 18848), (11780, 18784), (12160, 18197)]