20348620480

素因数分解:

$2^6\times 5^1\times {\mathrm{191}}^1\times {\mathrm{577}}^2$

素因数の和:1362

約数の個数: 84

約数和(自身を含む): 48793408128

約数和(自身を除く): 28444787648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 191, 320, 382, 577, 764, 955, 1154, 1528, 1910, 2308, 2885, 3056, 3820, 4616, 5770, 6112, 7640, 9232, 11540, 12224, 15280, 18464, 23080, 30560, 36928, 46160, 61120, 92320, 110207, 184640, 220414, 332929, 440828, 551035, 665858, 881656, 1102070, 1331716, 1664645, 1763312, 2204140, 2663432, 3329290, 3526624, 4408280, 5326864, 6658580, 7053248, 8816560, 10653728, 13317160, 17633120, 21307456, 26634320, 35266240, 53268640, 63589439, 106537280, 127178878, 254357756, 317947195, 508715512, 635894390, 1017431024, 1271788780, 2034862048, 2543577560, 4069724096, 5087155120, 10174310240, 20348620480]

約数ペア:

[(1, 20348620480), (2, 10174310240), (4, 5087155120), (5, 4069724096), (8, 2543577560), (10, 2034862048), (16, 1271788780), (20, 1017431024), (32, 635894390), (40, 508715512), (64, 317947195), (80, 254357756), (160, 127178878), (191, 106537280), (320, 63589439), (382, 53268640), (577, 35266240), (764, 26634320), (955, 21307456), (1154, 17633120), (1528, 13317160), (1910, 10653728), (2308, 8816560), (2885, 7053248), (3056, 6658580), (3820, 5326864), (4616, 4408280), (5770, 3526624), (6112, 3329290), (7640, 2663432), (9232, 2204140), (11540, 1763312), (12224, 1664645), (15280, 1331716), (18464, 1102070), (23080, 881656), (30560, 665858), (36928, 551035), (46160, 440828), (61120, 332929), (92320, 220414), (110207, 184640)]