86760380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{397}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 213429888

約数和(自身を除く): 126669508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 223, 245, 397, 446, 490, 794, 892, 980, 1115, 1561, 1588, 1985, 2230, 2779, 3122, 3970, 4460, 5558, 6244, 7805, 7940, 10927, 11116, 13895, 15610, 19453, 21854, 27790, 31220, 38906, 43708, 54635, 55580, 77812, 88531, 97265, 109270, 177062, 194530, 218540, 354124, 389060, 442655, 619717, 885310, 1239434, 1770620, 2478868, 3098585, 4338019, 6197170, 8676038, 12394340, 17352076, 21690095, 43380190, 86760380]

約数ペア:

[(1, 86760380), (2, 43380190), (4, 21690095), (5, 17352076), (7, 12394340), (10, 8676038), (14, 6197170), (20, 4338019), (28, 3098585), (35, 2478868), (49, 1770620), (70, 1239434), (98, 885310), (140, 619717), (196, 442655), (223, 389060), (245, 354124), (397, 218540), (446, 194530), (490, 177062), (794, 109270), (892, 97265), (980, 88531), (1115, 77812), (1561, 55580), (1588, 54635), (1985, 43708), (2230, 38906), (2779, 31220), (3122, 27790), (3970, 21854), (4460, 19453), (5558, 15610), (6244, 13895), (7805, 11116), (7940, 10927)]