40381720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24623}}^1$

素因数の和:24675

約数の個数: 32

約数和(自身を含む): 93078720

約数和(自身を除く): 52697000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 24623, 49246, 98492, 123115, 196984, 246230, 492460, 984920, 1009543, 2019086, 4038172, 5047715, 8076344, 10095430, 20190860, 40381720]

約数ペア:

[(1, 40381720), (2, 20190860), (4, 10095430), (5, 8076344), (8, 5047715), (10, 4038172), (20, 2019086), (40, 1009543), (41, 984920), (82, 492460), (164, 246230), (205, 196984), (328, 123115), (410, 98492), (820, 49246), (1640, 24623)]