20180940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25873}}^1$

素因数の和:25898

約数の個数: 48

約数和(自身を含む): 60855648

約数和(自身を除く): 40674708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25873, 51746, 77619, 103492, 129365, 155238, 258730, 310476, 336349, 388095, 517460, 672698, 776190, 1009047, 1345396, 1552380, 1681745, 2018094, 3363490, 4036188, 5045235, 6726980, 10090470, 20180940]

約数ペア:

[(1, 20180940), (2, 10090470), (3, 6726980), (4, 5045235), (5, 4036188), (6, 3363490), (10, 2018094), (12, 1681745), (13, 1552380), (15, 1345396), (20, 1009047), (26, 776190), (30, 672698), (39, 517460), (52, 388095), (60, 336349), (65, 310476), (78, 258730), (130, 155238), (156, 129365), (195, 103492), (260, 77619), (390, 51746), (780, 25873)]