78686340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21499}}^1$

素因数の和:21572

約数の個数: 48

約数和(自身を含む): 223944000

約数和(自身を除く): 145257660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 21499, 42998, 64497, 85996, 107495, 128994, 214990, 257988, 322485, 429980, 644970, 1289940, 1311439, 2622878, 3934317, 5245756, 6557195, 7868634, 13114390, 15737268, 19671585, 26228780, 39343170, 78686340]

約数ペア:

[(1, 78686340), (2, 39343170), (3, 26228780), (4, 19671585), (5, 15737268), (6, 13114390), (10, 7868634), (12, 6557195), (15, 5245756), (20, 3934317), (30, 2622878), (60, 1311439), (61, 1289940), (122, 644970), (183, 429980), (244, 322485), (305, 257988), (366, 214990), (610, 128994), (732, 107495), (915, 85996), (1220, 64497), (1830, 42998), (3660, 21499)]