78144800

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:211

約数の個数: 144

約数和(自身を含む): 206986752

約数和(自身を除く): 128841952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 31, 32, 40, 46, 50, 62, 80, 92, 100, 115, 124, 137, 155, 160, 184, 200, 230, 248, 274, 310, 368, 400, 460, 496, 548, 575, 620, 685, 713, 736, 775, 800, 920, 992, 1096, 1150, 1240, 1370, 1426, 1550, 1840, 2192, 2300, 2480, 2740, 2852, 3100, 3151, 3425, 3565, 3680, 4247, 4384, 4600, 4960, 5480, 5704, 6200, 6302, 6850, 7130, 8494, 9200, 10960, 11408, 12400, 12604, 13700, 14260, 15755, 16988, 17825, 18400, 21235, 21920, 22816, 24800, 25208, 27400, 28520, 31510, 33976, 35650, 42470, 50416, 54800, 57040, 63020, 67952, 71300, 78775, 84940, 97681, 100832, 106175, 109600, 114080, 126040, 135904, 142600, 157550, 169880, 195362, 212350, 252080, 285200, 315100, 339760, 390724, 424700, 488405, 504160, 570400, 630200, 679520, 781448, 849400, 976810, 1260400, 1562896, 1698800, 1953620, 2442025, 2520800, 3125792, 3397600, 3907240, 4884050, 7814480, 9768100, 15628960, 19536200, 39072400, 78144800]

約数ペア:

[(1, 78144800), (2, 39072400), (4, 19536200), (5, 15628960), (8, 9768100), (10, 7814480), (16, 4884050), (20, 3907240), (23, 3397600), (25, 3125792), (31, 2520800), (32, 2442025), (40, 1953620), (46, 1698800), (50, 1562896), (62, 1260400), (80, 976810), (92, 849400), (100, 781448), (115, 679520), (124, 630200), (137, 570400), (155, 504160), (160, 488405), (184, 424700), (200, 390724), (230, 339760), (248, 315100), (274, 285200), (310, 252080), (368, 212350), (400, 195362), (460, 169880), (496, 157550), (548, 142600), (575, 135904), (620, 126040), (685, 114080), (713, 109600), (736, 106175), (775, 100832), (800, 97681), (920, 84940), (992, 78775), (1096, 71300), (1150, 67952), (1240, 63020), (1370, 57040), (1426, 54800), (1550, 50416), (1840, 42470), (2192, 35650), (2300, 33976), (2480, 31510), (2740, 28520), (2852, 27400), (3100, 25208), (3151, 24800), (3425, 22816), (3565, 21920), (3680, 21235), (4247, 18400), (4384, 17825), (4600, 16988), (4960, 15755), (5480, 14260), (5704, 13700), (6200, 12604), (6302, 12400), (6850, 11408), (7130, 10960), (8494, 9200)]