19429980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:515

約数の個数: 96

約数和(自身を含む): 59076864

約数和(自身を除く): 39646884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 43, 51, 60, 68, 85, 86, 102, 129, 170, 172, 204, 215, 255, 258, 340, 430, 443, 510, 516, 645, 731, 860, 886, 1020, 1290, 1329, 1462, 1772, 2193, 2215, 2580, 2658, 2924, 3655, 4386, 4430, 5316, 6645, 7310, 7531, 8772, 8860, 10965, 13290, 14620, 15062, 19049, 21930, 22593, 26580, 30124, 37655, 38098, 43860, 45186, 57147, 75310, 76196, 90372, 95245, 112965, 114294, 150620, 190490, 225930, 228588, 285735, 323833, 380980, 451860, 571470, 647666, 971499, 1142940, 1295332, 1619165, 1942998, 3238330, 3885996, 4857495, 6476660, 9714990, 19429980]

約数ペア:

[(1, 19429980), (2, 9714990), (3, 6476660), (4, 4857495), (5, 3885996), (6, 3238330), (10, 1942998), (12, 1619165), (15, 1295332), (17, 1142940), (20, 971499), (30, 647666), (34, 571470), (43, 451860), (51, 380980), (60, 323833), (68, 285735), (85, 228588), (86, 225930), (102, 190490), (129, 150620), (170, 114294), (172, 112965), (204, 95245), (215, 90372), (255, 76196), (258, 75310), (340, 57147), (430, 45186), (443, 43860), (510, 38098), (516, 37655), (645, 30124), (731, 26580), (860, 22593), (886, 21930), (1020, 19049), (1290, 15062), (1329, 14620), (1462, 13290), (1772, 10965), (2193, 8860), (2215, 8772), (2580, 7531), (2658, 7310), (2924, 6645), (3655, 5316), (4386, 4430)]