308957440

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21943}}^1$

素因数の和:21975

約数の個数: 72

約数和(自身を含む): 807363648

約数和(自身を除く): 498406208

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 7040, 14080, 21943, 43886, 87772, 109715, 175544, 219430, 241373, 351088, 438860, 482746, 702176, 877720, 965492, 1206865, 1404352, 1755440, 1930984, 2413730, 2808704, 3510880, 3861968, 4827460, 5617408, 7021760, 7723936, 9654920, 14043520, 15447872, 19309840, 28087040, 30895744, 38619680, 61791488, 77239360, 154478720, 308957440]

約数ペア:

[(1, 308957440), (2, 154478720), (4, 77239360), (5, 61791488), (8, 38619680), (10, 30895744), (11, 28087040), (16, 19309840), (20, 15447872), (22, 14043520), (32, 9654920), (40, 7723936), (44, 7021760), (55, 5617408), (64, 4827460), (80, 3861968), (88, 3510880), (110, 2808704), (128, 2413730), (160, 1930984), (176, 1755440), (220, 1404352), (256, 1206865), (320, 965492), (352, 877720), (440, 702176), (640, 482746), (704, 438860), (880, 351088), (1280, 241373), (1408, 219430), (1760, 175544), (2816, 109715), (3520, 87772), (7040, 43886), (14080, 21943)]