644947440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2687281}}^1$

素因数の和:2687297

約数の個数: 40

約数和(自身を含む): 1999337808

約数和(自身を除く): 1354390368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2687281, 5374562, 8061843, 10749124, 13436405, 16123686, 21498248, 26872810, 32247372, 40309215, 42996496, 53745620, 64494744, 80618430, 107491240, 128989488, 161236860, 214982480, 322473720, 644947440]

約数ペア:

[(1, 644947440), (2, 322473720), (3, 214982480), (4, 161236860), (5, 128989488), (6, 107491240), (8, 80618430), (10, 64494744), (12, 53745620), (15, 42996496), (16, 40309215), (20, 32247372), (24, 26872810), (30, 21498248), (40, 16123686), (48, 13436405), (60, 10749124), (80, 8061843), (120, 5374562), (240, 2687281)]