78889020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{26833}}^1$

素因数の和:26859

約数の個数: 72

約数和(自身を含む): 256962384

約数和(自身を除く): 178073364

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 26833, 53666, 80499, 107332, 134165, 160998, 187831, 268330, 321996, 375662, 402495, 536660, 563493, 751324, 804990, 939155, 1126986, 1314817, 1609980, 1878310, 2253972, 2629634, 2817465, 3756620, 3944451, 5259268, 5634930, 6574085, 7888902, 11269860, 13148170, 15777804, 19722255, 26296340, 39444510, 78889020]

約数ペア:

[(1, 78889020), (2, 39444510), (3, 26296340), (4, 19722255), (5, 15777804), (6, 13148170), (7, 11269860), (10, 7888902), (12, 6574085), (14, 5634930), (15, 5259268), (20, 3944451), (21, 3756620), (28, 2817465), (30, 2629634), (35, 2253972), (42, 1878310), (49, 1609980), (60, 1314817), (70, 1126986), (84, 939155), (98, 804990), (105, 751324), (140, 563493), (147, 536660), (196, 402495), (210, 375662), (245, 321996), (294, 268330), (420, 187831), (490, 160998), (588, 134165), (735, 107332), (980, 80499), (1470, 53666), (2940, 26833)]