729716820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{248203}}^1$

素因数の和:248229

約数の個数: 72

約数和(自身を含む): 2376801504

約数和(自身を除く): 1647084684

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 248203, 496406, 744609, 992812, 1241015, 1489218, 1737421, 2482030, 2978436, 3474842, 3723045, 4964060, 5212263, 6949684, 7446090, 8687105, 10424526, 12161947, 14892180, 17374210, 20849052, 24323894, 26061315, 34748420, 36485841, 48647788, 52122630, 60809735, 72971682, 104245260, 121619470, 145943364, 182429205, 243238940, 364858410, 729716820]

約数ペア:

[(1, 729716820), (2, 364858410), (3, 243238940), (4, 182429205), (5, 145943364), (6, 121619470), (7, 104245260), (10, 72971682), (12, 60809735), (14, 52122630), (15, 48647788), (20, 36485841), (21, 34748420), (28, 26061315), (30, 24323894), (35, 20849052), (42, 17374210), (49, 14892180), (60, 12161947), (70, 10424526), (84, 8687105), (98, 7446090), (105, 6949684), (140, 5212263), (147, 4964060), (196, 3723045), (210, 3474842), (245, 2978436), (294, 2482030), (420, 1737421), (490, 1489218), (588, 1241015), (735, 992812), (980, 744609), (1470, 496406), (2940, 248203)]