16399400

素因数分解:

$2^3\times 5^2\times {\mathrm{167}}^1\times {\mathrm{491}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 38435040

約数和(自身を除く): 22035640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 167, 200, 334, 491, 668, 835, 982, 1336, 1670, 1964, 2455, 3340, 3928, 4175, 4910, 6680, 8350, 9820, 12275, 16700, 19640, 24550, 33400, 49100, 81997, 98200, 163994, 327988, 409985, 655976, 819970, 1639940, 2049925, 3279880, 4099850, 8199700, 16399400]

約数ペア:

[(1, 16399400), (2, 8199700), (4, 4099850), (5, 3279880), (8, 2049925), (10, 1639940), (20, 819970), (25, 655976), (40, 409985), (50, 327988), (100, 163994), (167, 98200), (200, 81997), (334, 49100), (491, 33400), (668, 24550), (835, 19640), (982, 16700), (1336, 12275), (1670, 9820), (1964, 8350), (2455, 6680), (3340, 4910), (3928, 4175)]