81473580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 144

約数和(自身を含む): 263581920

約数和(自身を除く): 182108340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 90, 93, 108, 124, 135, 155, 157, 180, 186, 270, 279, 310, 314, 372, 465, 471, 540, 558, 620, 628, 785, 837, 930, 942, 961, 1116, 1395, 1413, 1570, 1674, 1860, 1884, 1922, 2355, 2790, 2826, 2883, 3140, 3348, 3844, 4185, 4239, 4710, 4805, 4867, 5580, 5652, 5766, 7065, 8370, 8478, 8649, 9420, 9610, 9734, 11532, 14130, 14415, 14601, 16740, 16956, 17298, 19220, 19468, 21195, 24335, 25947, 28260, 28830, 29202, 34596, 42390, 43245, 43803, 48670, 51894, 57660, 58404, 73005, 84780, 86490, 87606, 97340, 103788, 129735, 131409, 146010, 150877, 172980, 175212, 219015, 259470, 262818, 292020, 301754, 438030, 452631, 518940, 525636, 603508, 657045, 754385, 876060, 905262, 1314090, 1357893, 1508770, 1810524, 2263155, 2628180, 2715786, 3017540, 4073679, 4526310, 5431572, 6789465, 8147358, 9052620, 13578930, 16294716, 20368395, 27157860, 40736790, 81473580]

約数ペア:

[(1, 81473580), (2, 40736790), (3, 27157860), (4, 20368395), (5, 16294716), (6, 13578930), (9, 9052620), (10, 8147358), (12, 6789465), (15, 5431572), (18, 4526310), (20, 4073679), (27, 3017540), (30, 2715786), (31, 2628180), (36, 2263155), (45, 1810524), (54, 1508770), (60, 1357893), (62, 1314090), (90, 905262), (93, 876060), (108, 754385), (124, 657045), (135, 603508), (155, 525636), (157, 518940), (180, 452631), (186, 438030), (270, 301754), (279, 292020), (310, 262818), (314, 259470), (372, 219015), (465, 175212), (471, 172980), (540, 150877), (558, 146010), (620, 131409), (628, 129735), (785, 103788), (837, 97340), (930, 87606), (942, 86490), (961, 84780), (1116, 73005), (1395, 58404), (1413, 57660), (1570, 51894), (1674, 48670), (1860, 43803), (1884, 43245), (1922, 42390), (2355, 34596), (2790, 29202), (2826, 28830), (2883, 28260), (3140, 25947), (3348, 24335), (3844, 21195), (4185, 19468), (4239, 19220), (4710, 17298), (4805, 16956), (4867, 16740), (5580, 14601), (5652, 14415), (5766, 14130), (7065, 11532), (8370, 9734), (8478, 9610), (8649, 9420)]