81135180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{9199}}^1$

素因数の和:9228

約数の個数: 108

約数和(自身を含む): 286322400

約数和(自身を除く): 205187220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 9199, 18398, 27597, 36796, 45995, 55194, 64393, 82791, 91990, 110388, 128786, 137985, 165582, 183980, 193179, 257572, 275970, 321965, 331164, 386358, 413955, 450751, 551940, 579537, 643930, 772716, 827910, 901502, 965895, 1159074, 1287860, 1352253, 1655820, 1803004, 1931790, 2253755, 2318148, 2704506, 2897685, 3863580, 4056759, 4507510, 5409012, 5795370, 6761265, 8113518, 9015020, 11590740, 13522530, 16227036, 20283795, 27045060, 40567590, 81135180]

約数ペア:

[(1, 81135180), (2, 40567590), (3, 27045060), (4, 20283795), (5, 16227036), (6, 13522530), (7, 11590740), (9, 9015020), (10, 8113518), (12, 6761265), (14, 5795370), (15, 5409012), (18, 4507510), (20, 4056759), (21, 3863580), (28, 2897685), (30, 2704506), (35, 2318148), (36, 2253755), (42, 1931790), (45, 1803004), (49, 1655820), (60, 1352253), (63, 1287860), (70, 1159074), (84, 965895), (90, 901502), (98, 827910), (105, 772716), (126, 643930), (140, 579537), (147, 551940), (180, 450751), (196, 413955), (210, 386358), (245, 331164), (252, 321965), (294, 275970), (315, 257572), (420, 193179), (441, 183980), (490, 165582), (588, 137985), (630, 128786), (735, 110388), (882, 91990), (980, 82791), (1260, 64393), (1470, 55194), (1764, 45995), (2205, 36796), (2940, 27597), (4410, 18398), (8820, 9199)]