40513280

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1021}}^1$

素因数の和:1073

約数の個数: 72

約数和(自身を含む): 100270464

約数和(自身を除く): 59757184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1021, 1240, 1280, 1984, 2042, 2480, 3968, 4084, 4960, 5105, 7936, 8168, 9920, 10210, 16336, 19840, 20420, 31651, 32672, 39680, 40840, 63302, 65344, 81680, 126604, 130688, 158255, 163360, 253208, 261376, 316510, 326720, 506416, 633020, 653440, 1012832, 1266040, 1306880, 2025664, 2532080, 4051328, 5064160, 8102656, 10128320, 20256640, 40513280]

約数ペア:

[(1, 40513280), (2, 20256640), (4, 10128320), (5, 8102656), (8, 5064160), (10, 4051328), (16, 2532080), (20, 2025664), (31, 1306880), (32, 1266040), (40, 1012832), (62, 653440), (64, 633020), (80, 506416), (124, 326720), (128, 316510), (155, 261376), (160, 253208), (248, 163360), (256, 158255), (310, 130688), (320, 126604), (496, 81680), (620, 65344), (640, 63302), (992, 40840), (1021, 39680), (1240, 32672), (1280, 31651), (1984, 20420), (2042, 19840), (2480, 16336), (3968, 10210), (4084, 9920), (4960, 8168), (5105, 7936)]