81448160

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16421}}^1$

素因数の和:16467

約数の個数: 48

約数和(自身を含む): 198640512

約数和(自身を除く): 117192352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 16421, 32842, 65684, 82105, 131368, 164210, 262736, 328420, 509051, 525472, 656840, 1018102, 1313680, 2036204, 2545255, 2627360, 4072408, 5090510, 8144816, 10181020, 16289632, 20362040, 40724080, 81448160]

約数ペア:

[(1, 81448160), (2, 40724080), (4, 20362040), (5, 16289632), (8, 10181020), (10, 8144816), (16, 5090510), (20, 4072408), (31, 2627360), (32, 2545255), (40, 2036204), (62, 1313680), (80, 1018102), (124, 656840), (155, 525472), (160, 509051), (248, 328420), (310, 262736), (496, 164210), (620, 131368), (992, 82105), (1240, 65684), (2480, 32842), (4960, 16421)]