220515680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2557}}^1$

素因数の和:2597

約数の個数: 144

約数和(自身を含む): 661376016

約数和(自身を除く): 440860336

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 352, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 980, 1078, 1120, 1232, 1540, 1568, 1760, 1960, 2156, 2464, 2557, 2695, 3080, 3920, 4312, 5114, 5390, 6160, 7840, 8624, 10228, 10780, 12320, 12785, 17248, 17899, 20456, 21560, 25570, 28127, 35798, 40912, 43120, 51140, 56254, 71596, 81824, 86240, 89495, 102280, 112508, 125293, 140635, 143192, 178990, 196889, 204560, 225016, 250586, 281270, 286384, 357980, 393778, 409120, 450032, 501172, 562540, 572768, 626465, 715960, 787556, 900064, 984445, 1002344, 1125080, 1252930, 1378223, 1431920, 1575112, 1968890, 2004688, 2250160, 2505860, 2756446, 2863840, 3150224, 3937780, 4009376, 4500320, 5011720, 5512892, 6300448, 6891115, 7875560, 10023440, 11025784, 13782230, 15751120, 20046880, 22051568, 27564460, 31502240, 44103136, 55128920, 110257840, 220515680]

約数ペア:

[(1, 220515680), (2, 110257840), (4, 55128920), (5, 44103136), (7, 31502240), (8, 27564460), (10, 22051568), (11, 20046880), (14, 15751120), (16, 13782230), (20, 11025784), (22, 10023440), (28, 7875560), (32, 6891115), (35, 6300448), (40, 5512892), (44, 5011720), (49, 4500320), (55, 4009376), (56, 3937780), (70, 3150224), (77, 2863840), (80, 2756446), (88, 2505860), (98, 2250160), (110, 2004688), (112, 1968890), (140, 1575112), (154, 1431920), (160, 1378223), (176, 1252930), (196, 1125080), (220, 1002344), (224, 984445), (245, 900064), (280, 787556), (308, 715960), (352, 626465), (385, 572768), (392, 562540), (440, 501172), (490, 450032), (539, 409120), (560, 393778), (616, 357980), (770, 286384), (784, 281270), (880, 250586), (980, 225016), (1078, 204560), (1120, 196889), (1232, 178990), (1540, 143192), (1568, 140635), (1760, 125293), (1960, 112508), (2156, 102280), (2464, 89495), (2557, 86240), (2695, 81824), (3080, 71596), (3920, 56254), (4312, 51140), (5114, 43120), (5390, 40912), (6160, 35798), (7840, 28127), (8624, 25570), (10228, 21560), (10780, 20456), (12320, 17899), (12785, 17248)]