278855278

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{911}}^1$

素因数の和:1180

約数の個数: 32

約数和(自身を含む): 460720512

約数和(自身を除く): 181865234

約数列:

[1, 2, 13, 26, 61, 122, 193, 386, 793, 911, 1586, 1822, 2509, 5018, 11773, 11843, 23546, 23686, 55571, 111142, 153049, 175823, 306098, 351646, 722423, 1444846, 2285699, 4571398, 10725203, 21450406, 139427639, 278855278]

約数ペア:

[(1, 278855278), (2, 139427639), (13, 21450406), (26, 10725203), (61, 4571398), (122, 2285699), (193, 1444846), (386, 722423), (793, 351646), (911, 306098), (1586, 175823), (1822, 153049), (2509, 111142), (5018, 55571), (11773, 23686), (11843, 23546)]