72336640

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1823}}^1$

素因数の和:1875

約数の個数: 72

約数和(自身を含む): 178956288

約数和(自身を除く): 106619648

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, 1240, 1280, 1823, 1984, 2480, 3646, 3968, 4960, 7292, 7936, 9115, 9920, 14584, 18230, 19840, 29168, 36460, 39680, 56513, 58336, 72920, 113026, 116672, 145840, 226052, 233344, 282565, 291680, 452104, 466688, 565130, 583360, 904208, 1130260, 1166720, 1808416, 2260520, 2333440, 3616832, 4521040, 7233664, 9042080, 14467328, 18084160, 36168320, 72336640]

約数ペア:

[(1, 72336640), (2, 36168320), (4, 18084160), (5, 14467328), (8, 9042080), (10, 7233664), (16, 4521040), (20, 3616832), (31, 2333440), (32, 2260520), (40, 1808416), (62, 1166720), (64, 1130260), (80, 904208), (124, 583360), (128, 565130), (155, 466688), (160, 452104), (248, 291680), (256, 282565), (310, 233344), (320, 226052), (496, 145840), (620, 116672), (640, 113026), (992, 72920), (1240, 58336), (1280, 56513), (1823, 39680), (1984, 36460), (2480, 29168), (3646, 19840), (3968, 18230), (4960, 14584), (7292, 9920), (7936, 9115)]