20146840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{541}}^1$

素因数の和:585

約数の個数: 96

約数和(自身を含む): 55609200

約数和(自身を除く): 35462360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 490, 532, 541, 665, 760, 931, 980, 1064, 1082, 1330, 1862, 1960, 2164, 2660, 2705, 3724, 3787, 4328, 4655, 5320, 5410, 7448, 7574, 9310, 10279, 10820, 15148, 18620, 18935, 20558, 21640, 26509, 30296, 37240, 37870, 41116, 51395, 53018, 71953, 75740, 82232, 102790, 106036, 132545, 143906, 151480, 205580, 212072, 265090, 287812, 359765, 411160, 503671, 530180, 575624, 719530, 1007342, 1060360, 1439060, 2014684, 2518355, 2878120, 4029368, 5036710, 10073420, 20146840]

約数ペア:

[(1, 20146840), (2, 10073420), (4, 5036710), (5, 4029368), (7, 2878120), (8, 2518355), (10, 2014684), (14, 1439060), (19, 1060360), (20, 1007342), (28, 719530), (35, 575624), (38, 530180), (40, 503671), (49, 411160), (56, 359765), (70, 287812), (76, 265090), (95, 212072), (98, 205580), (133, 151480), (140, 143906), (152, 132545), (190, 106036), (196, 102790), (245, 82232), (266, 75740), (280, 71953), (380, 53018), (392, 51395), (490, 41116), (532, 37870), (541, 37240), (665, 30296), (760, 26509), (931, 21640), (980, 20558), (1064, 18935), (1082, 18620), (1330, 15148), (1862, 10820), (1960, 10279), (2164, 9310), (2660, 7574), (2705, 7448), (3724, 5410), (3787, 5320), (4328, 4655)]