81008033900

素因数分解:

$2^2\times 5^2\times {\mathrm{3203}}^1\times {\mathrm{252913}}^1$

素因数の和:256130

約数の個数: 36

約数和(自身を含む): 175843010952

約数和(自身を除く): 94834977052

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 3203, 6406, 12812, 16015, 32030, 64060, 80075, 160150, 252913, 320300, 505826, 1011652, 1264565, 2529130, 5058260, 6322825, 12645650, 25291300, 810080339, 1620160678, 3240321356, 4050401695, 8100803390, 16201606780, 20252008475, 40504016950, 81008033900]

約数ペア:

[(1, 81008033900), (2, 40504016950), (4, 20252008475), (5, 16201606780), (10, 8100803390), (20, 4050401695), (25, 3240321356), (50, 1620160678), (100, 810080339), (3203, 25291300), (6406, 12645650), (12812, 6322825), (16015, 5058260), (32030, 2529130), (64060, 1264565), (80075, 1011652), (160150, 505826), (252913, 320300)]