20180380428

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{188299}}^1$

素因数の和:188551

約数の個数: 72

約数和(自身を含む): 55175666000

約数和(自身を除く): 34995285572

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 229, 234, 458, 468, 687, 916, 1374, 2061, 2748, 2977, 4122, 5954, 8244, 8931, 11908, 17862, 26793, 35724, 53586, 107172, 188299, 376598, 564897, 753196, 1129794, 1694691, 2259588, 2447887, 3389382, 4895774, 6778764, 7343661, 9791548, 14687322, 22030983, 29374644, 43120471, 44061966, 86240942, 88123932, 129361413, 172481884, 258722826, 388084239, 517445652, 560566123, 776168478, 1121132246, 1552336956, 1681698369, 2242264492, 3363396738, 5045095107, 6726793476, 10090190214, 20180380428]

約数ペア:

[(1, 20180380428), (2, 10090190214), (3, 6726793476), (4, 5045095107), (6, 3363396738), (9, 2242264492), (12, 1681698369), (13, 1552336956), (18, 1121132246), (26, 776168478), (36, 560566123), (39, 517445652), (52, 388084239), (78, 258722826), (117, 172481884), (156, 129361413), (229, 88123932), (234, 86240942), (458, 44061966), (468, 43120471), (687, 29374644), (916, 22030983), (1374, 14687322), (2061, 9791548), (2748, 7343661), (2977, 6778764), (4122, 4895774), (5954, 3389382), (8244, 2447887), (8931, 2259588), (11908, 1694691), (17862, 1129794), (26793, 753196), (35724, 564897), (53586, 376598), (107172, 188299)]