81211770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:396

約数の個数: 96

約数和(自身を含む): 219428352

約数和(自身を除く): 138216582

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 47, 73, 90, 94, 141, 146, 219, 235, 263, 282, 365, 423, 438, 470, 526, 657, 705, 730, 789, 846, 1095, 1314, 1315, 1410, 1578, 2115, 2190, 2367, 2630, 3285, 3431, 3945, 4230, 4734, 6570, 6862, 7890, 10293, 11835, 12361, 17155, 19199, 20586, 23670, 24722, 30879, 34310, 37083, 38398, 51465, 57597, 61758, 61805, 74166, 95995, 102930, 111249, 115194, 123610, 154395, 172791, 185415, 191990, 222498, 287985, 308790, 345582, 370830, 556245, 575970, 863955, 902353, 1112490, 1727910, 1804706, 2707059, 4511765, 5414118, 8121177, 9023530, 13535295, 16242354, 27070590, 40605885, 81211770]

約数ペア:

[(1, 81211770), (2, 40605885), (3, 27070590), (5, 16242354), (6, 13535295), (9, 9023530), (10, 8121177), (15, 5414118), (18, 4511765), (30, 2707059), (45, 1804706), (47, 1727910), (73, 1112490), (90, 902353), (94, 863955), (141, 575970), (146, 556245), (219, 370830), (235, 345582), (263, 308790), (282, 287985), (365, 222498), (423, 191990), (438, 185415), (470, 172791), (526, 154395), (657, 123610), (705, 115194), (730, 111249), (789, 102930), (846, 95995), (1095, 74166), (1314, 61805), (1315, 61758), (1410, 57597), (1578, 51465), (2115, 38398), (2190, 37083), (2367, 34310), (2630, 30879), (3285, 24722), (3431, 23670), (3945, 20586), (4230, 19199), (4734, 17155), (6570, 12361), (6862, 11835), (7890, 10293)]