18109980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1597}}^1$

素因数の和:1625

約数の個数: 120

約数和(自身を含む): 64968288

約数和(自身を除く): 46858308

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1597, 1620, 1890, 2268, 2835, 3194, 3780, 4791, 5670, 6388, 7985, 9582, 11179, 11340, 14373, 15970, 19164, 22358, 23955, 28746, 31940, 33537, 43119, 44716, 47910, 55895, 57492, 67074, 71865, 86238, 95820, 100611, 111790, 129357, 134148, 143730, 167685, 172476, 201222, 215595, 223580, 258714, 287460, 301833, 335370, 402444, 431190, 503055, 517428, 603666, 646785, 670740, 862380, 905499, 1006110, 1207332, 1293570, 1509165, 1810998, 2012220, 2587140, 3018330, 3621996, 4527495, 6036660, 9054990, 18109980]

約数ペア:

[(1, 18109980), (2, 9054990), (3, 6036660), (4, 4527495), (5, 3621996), (6, 3018330), (7, 2587140), (9, 2012220), (10, 1810998), (12, 1509165), (14, 1293570), (15, 1207332), (18, 1006110), (20, 905499), (21, 862380), (27, 670740), (28, 646785), (30, 603666), (35, 517428), (36, 503055), (42, 431190), (45, 402444), (54, 335370), (60, 301833), (63, 287460), (70, 258714), (81, 223580), (84, 215595), (90, 201222), (105, 172476), (108, 167685), (126, 143730), (135, 134148), (140, 129357), (162, 111790), (180, 100611), (189, 95820), (210, 86238), (252, 71865), (270, 67074), (315, 57492), (324, 55895), (378, 47910), (405, 44716), (420, 43119), (540, 33537), (567, 31940), (630, 28746), (756, 23955), (810, 22358), (945, 19164), (1134, 15970), (1260, 14373), (1597, 11340), (1620, 11179), (1890, 9582), (2268, 7985), (2835, 6388), (3194, 5670), (3780, 4791)]