81891036

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:579

約数の個数: 72

約数和(自身を含む): 213267600

約数和(自身を除く): 131376564

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 89, 122, 178, 183, 244, 267, 356, 366, 419, 534, 549, 732, 801, 838, 1068, 1098, 1257, 1602, 1676, 2196, 2514, 3204, 3771, 5028, 5429, 7542, 10858, 15084, 16287, 21716, 25559, 32574, 37291, 48861, 51118, 65148, 74582, 76677, 97722, 102236, 111873, 149164, 153354, 195444, 223746, 230031, 306708, 335619, 447492, 460062, 671238, 920124, 1342476, 2274751, 4549502, 6824253, 9099004, 13648506, 20472759, 27297012, 40945518, 81891036]

約数ペア:

[(1, 81891036), (2, 40945518), (3, 27297012), (4, 20472759), (6, 13648506), (9, 9099004), (12, 6824253), (18, 4549502), (36, 2274751), (61, 1342476), (89, 920124), (122, 671238), (178, 460062), (183, 447492), (244, 335619), (267, 306708), (356, 230031), (366, 223746), (419, 195444), (534, 153354), (549, 149164), (732, 111873), (801, 102236), (838, 97722), (1068, 76677), (1098, 74582), (1257, 65148), (1602, 51118), (1676, 48861), (2196, 37291), (2514, 32574), (3204, 25559), (3771, 21716), (5028, 16287), (5429, 15084), (7542, 10858)]