78439900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 216986112

約数和(自身を除く): 138546212

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 61, 70, 77, 100, 110, 122, 140, 154, 167, 175, 220, 244, 275, 305, 308, 334, 350, 385, 427, 550, 610, 668, 671, 700, 770, 835, 854, 1100, 1169, 1220, 1342, 1525, 1540, 1670, 1708, 1837, 1925, 2135, 2338, 2684, 3050, 3340, 3355, 3674, 3850, 4175, 4270, 4676, 4697, 5845, 6100, 6710, 7348, 7700, 8350, 8540, 9185, 9394, 10187, 10675, 11690, 12859, 13420, 16700, 16775, 18370, 18788, 20374, 21350, 23380, 23485, 25718, 29225, 33550, 36740, 40748, 42700, 45925, 46970, 50935, 51436, 58450, 64295, 67100, 71309, 91850, 93940, 101870, 112057, 116900, 117425, 128590, 142618, 183700, 203740, 224114, 234850, 254675, 257180, 285236, 321475, 356545, 448228, 469700, 509350, 560285, 642950, 713090, 784399, 1018700, 1120570, 1285900, 1426180, 1568798, 1782725, 2241140, 2801425, 3137596, 3565450, 3921995, 5602850, 7130900, 7843990, 11205700, 15687980, 19609975, 39219950, 78439900]

約数ペア:

[(1, 78439900), (2, 39219950), (4, 19609975), (5, 15687980), (7, 11205700), (10, 7843990), (11, 7130900), (14, 5602850), (20, 3921995), (22, 3565450), (25, 3137596), (28, 2801425), (35, 2241140), (44, 1782725), (50, 1568798), (55, 1426180), (61, 1285900), (70, 1120570), (77, 1018700), (100, 784399), (110, 713090), (122, 642950), (140, 560285), (154, 509350), (167, 469700), (175, 448228), (220, 356545), (244, 321475), (275, 285236), (305, 257180), (308, 254675), (334, 234850), (350, 224114), (385, 203740), (427, 183700), (550, 142618), (610, 128590), (668, 117425), (671, 116900), (700, 112057), (770, 101870), (835, 93940), (854, 91850), (1100, 71309), (1169, 67100), (1220, 64295), (1342, 58450), (1525, 51436), (1540, 50935), (1670, 46970), (1708, 45925), (1837, 42700), (1925, 40748), (2135, 36740), (2338, 33550), (2684, 29225), (3050, 25718), (3340, 23485), (3355, 23380), (3674, 21350), (3850, 20374), (4175, 18788), (4270, 18370), (4676, 16775), (4697, 16700), (5845, 13420), (6100, 12859), (6710, 11690), (7348, 10675), (7700, 10187), (8350, 9394), (8540, 9185)]