388978700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 216

約数和(自身を含む): 1030684032

約数和(自身を除く): 641705332

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 31, 34, 44, 50, 55, 61, 62, 68, 85, 100, 110, 121, 122, 124, 155, 170, 187, 220, 242, 244, 275, 305, 310, 340, 341, 374, 425, 484, 527, 550, 605, 610, 620, 671, 682, 748, 775, 850, 935, 1037, 1054, 1100, 1210, 1220, 1342, 1364, 1525, 1550, 1700, 1705, 1870, 1891, 2057, 2074, 2108, 2420, 2635, 2684, 3025, 3050, 3100, 3355, 3410, 3740, 3751, 3782, 4114, 4148, 4675, 5185, 5270, 5797, 6050, 6100, 6710, 6820, 7381, 7502, 7564, 8228, 8525, 9350, 9455, 10285, 10370, 10540, 11407, 11594, 12100, 13175, 13420, 14762, 15004, 16775, 17050, 18700, 18755, 18910, 20570, 20740, 20801, 22814, 23188, 25925, 26350, 28985, 29524, 32147, 33550, 34100, 36905, 37510, 37820, 41140, 41602, 45628, 47275, 51425, 51850, 52700, 57035, 57970, 63767, 64294, 67100, 73810, 75020, 83204, 93775, 94550, 102850, 103700, 104005, 114070, 115940, 125477, 127534, 128588, 144925, 147620, 160735, 184525, 187550, 189100, 205700, 208010, 228140, 228811, 250954, 255068, 285175, 289850, 318835, 321470, 353617, 369050, 375100, 416020, 457622, 501908, 520025, 570350, 579700, 627385, 637670, 642940, 707234, 738100, 803675, 915244, 1040050, 1140700, 1144055, 1254770, 1275340, 1414468, 1594175, 1607350, 1768085, 2080100, 2288110, 2509540, 3136925, 3188350, 3214700, 3536170, 3889787, 4576220, 5720275, 6273850, 6376700, 7072340, 7779574, 8840425, 11440550, 12547700, 15559148, 17680850, 19448935, 22881100, 35361700, 38897870, 77795740, 97244675, 194489350, 388978700]

約数ペア:

[(1, 388978700), (2, 194489350), (4, 97244675), (5, 77795740), (10, 38897870), (11, 35361700), (17, 22881100), (20, 19448935), (22, 17680850), (25, 15559148), (31, 12547700), (34, 11440550), (44, 8840425), (50, 7779574), (55, 7072340), (61, 6376700), (62, 6273850), (68, 5720275), (85, 4576220), (100, 3889787), (110, 3536170), (121, 3214700), (122, 3188350), (124, 3136925), (155, 2509540), (170, 2288110), (187, 2080100), (220, 1768085), (242, 1607350), (244, 1594175), (275, 1414468), (305, 1275340), (310, 1254770), (340, 1144055), (341, 1140700), (374, 1040050), (425, 915244), (484, 803675), (527, 738100), (550, 707234), (605, 642940), (610, 637670), (620, 627385), (671, 579700), (682, 570350), (748, 520025), (775, 501908), (850, 457622), (935, 416020), (1037, 375100), (1054, 369050), (1100, 353617), (1210, 321470), (1220, 318835), (1342, 289850), (1364, 285175), (1525, 255068), (1550, 250954), (1700, 228811), (1705, 228140), (1870, 208010), (1891, 205700), (2057, 189100), (2074, 187550), (2108, 184525), (2420, 160735), (2635, 147620), (2684, 144925), (3025, 128588), (3050, 127534), (3100, 125477), (3355, 115940), (3410, 114070), (3740, 104005), (3751, 103700), (3782, 102850), (4114, 94550), (4148, 93775), (4675, 83204), (5185, 75020), (5270, 73810), (5797, 67100), (6050, 64294), (6100, 63767), (6710, 57970), (6820, 57035), (7381, 52700), (7502, 51850), (7564, 51425), (8228, 47275), (8525, 45628), (9350, 41602), (9455, 41140), (10285, 37820), (10370, 37510), (10540, 36905), (11407, 34100), (11594, 33550), (12100, 32147), (13175, 29524), (13420, 28985), (14762, 26350), (15004, 25925), (16775, 23188), (17050, 22814), (18700, 20801), (18755, 20740), (18910, 20570)]