90790908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 237081600

約数和(自身を除く): 146290692

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 79, 106, 139, 156, 158, 159, 212, 237, 278, 316, 318, 417, 474, 556, 636, 689, 834, 948, 1027, 1378, 1668, 1807, 2054, 2067, 2756, 3081, 3614, 4108, 4134, 4187, 5421, 6162, 7228, 7367, 8268, 8374, 10842, 10981, 12324, 12561, 14734, 16748, 21684, 21962, 22101, 25122, 29468, 32943, 43924, 44202, 50244, 54431, 65886, 88404, 95771, 108862, 131772, 142753, 163293, 191542, 217724, 285506, 287313, 326586, 383084, 428259, 571012, 574626, 581993, 653172, 856518, 1149252, 1163986, 1713036, 1745979, 2327972, 3491958, 6983916, 7565909, 15131818, 22697727, 30263636, 45395454, 90790908]

約数ペア:

[(1, 90790908), (2, 45395454), (3, 30263636), (4, 22697727), (6, 15131818), (12, 7565909), (13, 6983916), (26, 3491958), (39, 2327972), (52, 1745979), (53, 1713036), (78, 1163986), (79, 1149252), (106, 856518), (139, 653172), (156, 581993), (158, 574626), (159, 571012), (212, 428259), (237, 383084), (278, 326586), (316, 287313), (318, 285506), (417, 217724), (474, 191542), (556, 163293), (636, 142753), (689, 131772), (834, 108862), (948, 95771), (1027, 88404), (1378, 65886), (1668, 54431), (1807, 50244), (2054, 44202), (2067, 43924), (2756, 32943), (3081, 29468), (3614, 25122), (4108, 22101), (4134, 21962), (4187, 21684), (5421, 16748), (6162, 14734), (7228, 12561), (7367, 12324), (8268, 10981), (8374, 10842)]