19491810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 54867456

約数和(自身を除く): 35375646

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 41, 46, 53, 65, 69, 78, 82, 106, 115, 123, 130, 138, 159, 195, 205, 230, 246, 265, 299, 318, 345, 390, 410, 530, 533, 598, 615, 689, 690, 795, 897, 943, 1066, 1219, 1230, 1378, 1495, 1590, 1599, 1794, 1886, 2067, 2173, 2438, 2665, 2829, 2990, 3198, 3445, 3657, 4134, 4346, 4485, 4715, 5330, 5658, 6095, 6519, 6890, 7314, 7995, 8970, 9430, 10335, 10865, 12190, 12259, 13038, 14145, 15847, 15990, 18285, 20670, 21730, 24518, 28249, 28290, 31694, 32595, 36570, 36777, 47541, 49979, 56498, 61295, 65190, 73554, 79235, 84747, 95082, 99958, 122590, 141245, 149937, 158470, 169494, 183885, 237705, 249895, 282490, 299874, 367770, 423735, 475410, 499790, 649727, 749685, 847470, 1299454, 1499370, 1949181, 3248635, 3898362, 6497270, 9745905, 19491810]

約数ペア:

[(1, 19491810), (2, 9745905), (3, 6497270), (5, 3898362), (6, 3248635), (10, 1949181), (13, 1499370), (15, 1299454), (23, 847470), (26, 749685), (30, 649727), (39, 499790), (41, 475410), (46, 423735), (53, 367770), (65, 299874), (69, 282490), (78, 249895), (82, 237705), (106, 183885), (115, 169494), (123, 158470), (130, 149937), (138, 141245), (159, 122590), (195, 99958), (205, 95082), (230, 84747), (246, 79235), (265, 73554), (299, 65190), (318, 61295), (345, 56498), (390, 49979), (410, 47541), (530, 36777), (533, 36570), (598, 32595), (615, 31694), (689, 28290), (690, 28249), (795, 24518), (897, 21730), (943, 20670), (1066, 18285), (1219, 15990), (1230, 15847), (1378, 14145), (1495, 13038), (1590, 12259), (1599, 12190), (1794, 10865), (1886, 10335), (2067, 9430), (2173, 8970), (2438, 7995), (2665, 7314), (2829, 6890), (2990, 6519), (3198, 6095), (3445, 5658), (3657, 5330), (4134, 4715), (4346, 4485)]