2556680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 6877440

約数和(自身を除く): 4320760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 397, 460, 644, 794, 805, 920, 1288, 1588, 1610, 1985, 2779, 3176, 3220, 3970, 5558, 6440, 7940, 9131, 11116, 13895, 15880, 18262, 22232, 27790, 36524, 45655, 55580, 63917, 73048, 91310, 111160, 127834, 182620, 255668, 319585, 365240, 511336, 639170, 1278340, 2556680]

約数ペア:

[(1, 2556680), (2, 1278340), (4, 639170), (5, 511336), (7, 365240), (8, 319585), (10, 255668), (14, 182620), (20, 127834), (23, 111160), (28, 91310), (35, 73048), (40, 63917), (46, 55580), (56, 45655), (70, 36524), (92, 27790), (115, 22232), (140, 18262), (161, 15880), (184, 13895), (230, 11116), (280, 9131), (322, 7940), (397, 6440), (460, 5558), (644, 3970), (794, 3220), (805, 3176), (920, 2779), (1288, 1985), (1588, 1610)]