639746360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{1009}}^1$

素因数の和:1173

約数の個数: 96

約数和(自身を含む): 1595840400

約数和(自身を除く): 956094040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 131, 220, 242, 262, 440, 484, 524, 605, 655, 968, 1009, 1048, 1210, 1310, 1441, 2018, 2420, 2620, 2882, 4036, 4840, 5045, 5240, 5764, 7205, 8072, 10090, 11099, 11528, 14410, 15851, 20180, 22198, 28820, 31702, 40360, 44396, 55495, 57640, 63404, 79255, 88792, 110990, 122089, 126808, 132179, 158510, 221980, 244178, 264358, 317020, 443960, 488356, 528716, 610445, 634040, 660895, 976712, 1057432, 1220890, 1321790, 1453969, 2441780, 2643580, 2907938, 4883560, 5287160, 5815876, 7269845, 11631752, 14539690, 15993659, 29079380, 31987318, 58158760, 63974636, 79968295, 127949272, 159936590, 319873180, 639746360]

約数ペア:

[(1, 639746360), (2, 319873180), (4, 159936590), (5, 127949272), (8, 79968295), (10, 63974636), (11, 58158760), (20, 31987318), (22, 29079380), (40, 15993659), (44, 14539690), (55, 11631752), (88, 7269845), (110, 5815876), (121, 5287160), (131, 4883560), (220, 2907938), (242, 2643580), (262, 2441780), (440, 1453969), (484, 1321790), (524, 1220890), (605, 1057432), (655, 976712), (968, 660895), (1009, 634040), (1048, 610445), (1210, 528716), (1310, 488356), (1441, 443960), (2018, 317020), (2420, 264358), (2620, 244178), (2882, 221980), (4036, 158510), (4840, 132179), (5045, 126808), (5240, 122089), (5764, 110990), (7205, 88792), (8072, 79255), (10090, 63404), (11099, 57640), (11528, 55495), (14410, 44396), (15851, 40360), (20180, 31702), (22198, 28820)]