18163810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1951}}^1$

素因数の和:1991

約数の個数: 48

約数和(自身を含む): 40055040

約数和(自身を除く): 21891230

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 1951, 3902, 4655, 9310, 9755, 13657, 19510, 27314, 37069, 68285, 74138, 95599, 136570, 185345, 191198, 259483, 370690, 477995, 518966, 955990, 1297415, 1816381, 2594830, 3632762, 9081905, 18163810]

約数ペア:

[(1, 18163810), (2, 9081905), (5, 3632762), (7, 2594830), (10, 1816381), (14, 1297415), (19, 955990), (35, 518966), (38, 477995), (49, 370690), (70, 259483), (95, 191198), (98, 185345), (133, 136570), (190, 95599), (245, 74138), (266, 68285), (490, 37069), (665, 27314), (931, 19510), (1330, 13657), (1862, 9755), (1951, 9310), (3902, 4655)]