20549100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:520

約数の個数: 144

約数和(自身を含む): 69995520

約数和(自身を除く): 49446420

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 25, 26, 30, 33, 39, 44, 50, 52, 55, 60, 65, 66, 75, 78, 100, 110, 130, 132, 143, 150, 156, 165, 195, 220, 260, 275, 286, 300, 325, 330, 390, 429, 479, 550, 572, 650, 660, 715, 780, 825, 858, 958, 975, 1100, 1300, 1430, 1437, 1650, 1716, 1916, 1950, 2145, 2395, 2860, 2874, 3300, 3575, 3900, 4290, 4790, 5269, 5748, 6227, 7150, 7185, 8580, 9580, 10538, 10725, 11975, 12454, 14300, 14370, 15807, 18681, 21076, 21450, 23950, 24908, 26345, 28740, 31135, 31614, 35925, 37362, 42900, 47900, 52690, 62270, 63228, 68497, 71850, 74724, 79035, 93405, 105380, 124540, 131725, 136994, 143700, 155675, 158070, 186810, 205491, 263450, 273988, 311350, 316140, 342485, 373620, 395175, 410982, 467025, 526900, 622700, 684970, 790350, 821964, 934050, 1027455, 1369940, 1580700, 1712425, 1868100, 2054910, 3424850, 4109820, 5137275, 6849700, 10274550, 20549100]

約数ペア:

[(1, 20549100), (2, 10274550), (3, 6849700), (4, 5137275), (5, 4109820), (6, 3424850), (10, 2054910), (11, 1868100), (12, 1712425), (13, 1580700), (15, 1369940), (20, 1027455), (22, 934050), (25, 821964), (26, 790350), (30, 684970), (33, 622700), (39, 526900), (44, 467025), (50, 410982), (52, 395175), (55, 373620), (60, 342485), (65, 316140), (66, 311350), (75, 273988), (78, 263450), (100, 205491), (110, 186810), (130, 158070), (132, 155675), (143, 143700), (150, 136994), (156, 131725), (165, 124540), (195, 105380), (220, 93405), (260, 79035), (275, 74724), (286, 71850), (300, 68497), (325, 63228), (330, 62270), (390, 52690), (429, 47900), (479, 42900), (550, 37362), (572, 35925), (650, 31614), (660, 31135), (715, 28740), (780, 26345), (825, 24908), (858, 23950), (958, 21450), (975, 21076), (1100, 18681), (1300, 15807), (1430, 14370), (1437, 14300), (1650, 12454), (1716, 11975), (1916, 10725), (1950, 10538), (2145, 9580), (2395, 8580), (2860, 7185), (2874, 7150), (3300, 6227), (3575, 5748), (3900, 5269), (4290, 4790)]