20019396880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{222043}}^1$

素因数の和:222093

約数の個数: 120

約数和(自身を含む): 56498651712

約数和(自身を除く): 36479254832

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 368, 392, 460, 490, 560, 644, 784, 805, 920, 980, 1127, 1288, 1610, 1840, 1960, 2254, 2576, 3220, 3920, 4508, 5635, 6440, 9016, 11270, 12880, 18032, 22540, 45080, 90160, 222043, 444086, 888172, 1110215, 1554301, 1776344, 2220430, 3108602, 3552688, 4440860, 5106989, 6217204, 7771505, 8881720, 10213978, 10880107, 12434408, 15543010, 17763440, 20427956, 21760214, 24868816, 25534945, 31086020, 35748923, 40855912, 43520428, 51069890, 54400535, 62172040, 71497846, 81711824, 87040856, 102139780, 108801070, 124344080, 142995692, 174081712, 178744615, 204279560, 217602140, 250242461, 285991384, 357489230, 408559120, 435204280, 500484922, 571982768, 714978460, 870408560, 1000969844, 1251212305, 1429956920, 2001939688, 2502424610, 2859913840, 4003879376, 5004849220, 10009698440, 20019396880]

約数ペア:

[(1, 20019396880), (2, 10009698440), (4, 5004849220), (5, 4003879376), (7, 2859913840), (8, 2502424610), (10, 2001939688), (14, 1429956920), (16, 1251212305), (20, 1000969844), (23, 870408560), (28, 714978460), (35, 571982768), (40, 500484922), (46, 435204280), (49, 408559120), (56, 357489230), (70, 285991384), (80, 250242461), (92, 217602140), (98, 204279560), (112, 178744615), (115, 174081712), (140, 142995692), (161, 124344080), (184, 108801070), (196, 102139780), (230, 87040856), (245, 81711824), (280, 71497846), (322, 62172040), (368, 54400535), (392, 51069890), (460, 43520428), (490, 40855912), (560, 35748923), (644, 31086020), (784, 25534945), (805, 24868816), (920, 21760214), (980, 20427956), (1127, 17763440), (1288, 15543010), (1610, 12434408), (1840, 10880107), (1960, 10213978), (2254, 8881720), (2576, 7771505), (3220, 6217204), (3920, 5106989), (4508, 4440860), (5635, 3552688), (6440, 3108602), (9016, 2220430), (11270, 1776344), (12880, 1554301), (18032, 1110215), (22540, 888172), (45080, 444086), (90160, 222043)]