209468720

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:582

約数の個数: 80

約数和(自身を含む): 501396480

約数和(自身を除く): 291927760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 127, 212, 254, 265, 389, 424, 508, 530, 635, 778, 848, 1016, 1060, 1270, 1556, 1945, 2032, 2120, 2540, 3112, 3890, 4240, 5080, 6224, 6731, 7780, 10160, 13462, 15560, 20617, 26924, 31120, 33655, 41234, 49403, 53848, 67310, 82468, 98806, 103085, 107696, 134620, 164936, 197612, 206170, 247015, 269240, 329872, 395224, 412340, 494030, 538480, 790448, 824680, 988060, 1649360, 1976120, 2618359, 3952240, 5236718, 10473436, 13091795, 20946872, 26183590, 41893744, 52367180, 104734360, 209468720]

約数ペア:

[(1, 209468720), (2, 104734360), (4, 52367180), (5, 41893744), (8, 26183590), (10, 20946872), (16, 13091795), (20, 10473436), (40, 5236718), (53, 3952240), (80, 2618359), (106, 1976120), (127, 1649360), (212, 988060), (254, 824680), (265, 790448), (389, 538480), (424, 494030), (508, 412340), (530, 395224), (635, 329872), (778, 269240), (848, 247015), (1016, 206170), (1060, 197612), (1270, 164936), (1556, 134620), (1945, 107696), (2032, 103085), (2120, 98806), (2540, 82468), (3112, 67310), (3890, 53848), (4240, 49403), (5080, 41234), (6224, 33655), (6731, 31120), (7780, 26924), (10160, 20617), (13462, 15560)]