81573700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{479}}^1$

素因数の和:637

約数の個数: 72

約数和(自身を含む): 192487680

約数和(自身を除く): 110913980

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 131, 260, 262, 325, 479, 524, 650, 655, 958, 1300, 1310, 1703, 1916, 2395, 2620, 3275, 3406, 4790, 6227, 6550, 6812, 8515, 9580, 11975, 12454, 13100, 17030, 23950, 24908, 31135, 34060, 42575, 47900, 62270, 62749, 85150, 124540, 125498, 155675, 170300, 250996, 311350, 313745, 622700, 627490, 815737, 1254980, 1568725, 1631474, 3137450, 3262948, 4078685, 6274900, 8157370, 16314740, 20393425, 40786850, 81573700]

約数ペア:

[(1, 81573700), (2, 40786850), (4, 20393425), (5, 16314740), (10, 8157370), (13, 6274900), (20, 4078685), (25, 3262948), (26, 3137450), (50, 1631474), (52, 1568725), (65, 1254980), (100, 815737), (130, 627490), (131, 622700), (260, 313745), (262, 311350), (325, 250996), (479, 170300), (524, 155675), (650, 125498), (655, 124540), (958, 85150), (1300, 62749), (1310, 62270), (1703, 47900), (1916, 42575), (2395, 34060), (2620, 31135), (3275, 24908), (3406, 23950), (4790, 17030), (6227, 13100), (6550, 12454), (6812, 11975), (8515, 9580)]