639576

素因数分解:

$2^3\times 3^5\times 7^1\times {\mathrm{47}}^1$

素因数の和:75

約数の個数: 96

約数和(自身を含む): 2096640

約数和(自身を除く): 1457064

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 47, 54, 56, 63, 72, 81, 84, 94, 108, 126, 141, 162, 168, 188, 189, 216, 243, 252, 282, 324, 329, 376, 378, 423, 486, 504, 564, 567, 648, 658, 756, 846, 972, 987, 1128, 1134, 1269, 1316, 1512, 1692, 1701, 1944, 1974, 2268, 2538, 2632, 2961, 3384, 3402, 3807, 3948, 4536, 5076, 5922, 6804, 7614, 7896, 8883, 10152, 11421, 11844, 13608, 15228, 17766, 22842, 23688, 26649, 30456, 35532, 45684, 53298, 71064, 79947, 91368, 106596, 159894, 213192, 319788, 639576]

約数ペア:

[(1, 639576), (2, 319788), (3, 213192), (4, 159894), (6, 106596), (7, 91368), (8, 79947), (9, 71064), (12, 53298), (14, 45684), (18, 35532), (21, 30456), (24, 26649), (27, 23688), (28, 22842), (36, 17766), (42, 15228), (47, 13608), (54, 11844), (56, 11421), (63, 10152), (72, 8883), (81, 7896), (84, 7614), (94, 6804), (108, 5922), (126, 5076), (141, 4536), (162, 3948), (168, 3807), (188, 3402), (189, 3384), (216, 2961), (243, 2632), (252, 2538), (282, 2268), (324, 1974), (329, 1944), (376, 1701), (378, 1692), (423, 1512), (486, 1316), (504, 1269), (564, 1134), (567, 1128), (648, 987), (658, 972), (756, 846)]