420399390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{325891}}^1$

素因数の和:325944

約数の個数: 32

約数和(自身を含む): 1032425856

約数和(自身を除く): 612026466

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 325891, 651782, 977673, 1629455, 1955346, 3258910, 4888365, 9776730, 14013313, 28026626, 42039939, 70066565, 84079878, 140133130, 210199695, 420399390]

約数ペア:

[(1, 420399390), (2, 210199695), (3, 140133130), (5, 84079878), (6, 70066565), (10, 42039939), (15, 28026626), (30, 14013313), (43, 9776730), (86, 4888365), (129, 3258910), (215, 1955346), (258, 1629455), (430, 977673), (645, 651782), (1290, 325891)]