387890720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{346331}}^1$

素因数の和:346353

約数の個数: 48

約数和(自身を含む): 1047307968

約数和(自身を除く): 659417248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 346331, 692662, 1385324, 1731655, 2424317, 2770648, 3463310, 4848634, 5541296, 6926620, 9697268, 11082592, 12121585, 13853240, 19394536, 24243170, 27706480, 38789072, 48486340, 55412960, 77578144, 96972680, 193945360, 387890720]

約数ペア:

[(1, 387890720), (2, 193945360), (4, 96972680), (5, 77578144), (7, 55412960), (8, 48486340), (10, 38789072), (14, 27706480), (16, 24243170), (20, 19394536), (28, 13853240), (32, 12121585), (35, 11082592), (40, 9697268), (56, 6926620), (70, 5541296), (80, 4848634), (112, 3463310), (140, 2770648), (160, 2424317), (224, 1731655), (280, 1385324), (560, 692662), (1120, 346331)]