128440300

素因数分解:

$2^2\times 5^2\times {\mathrm{401}}^1\times {\mathrm{3203}}^1$

素因数の和:3618

約数の個数: 36

約数和(自身を含む): 279497736

約数和(自身を除く): 151057436

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 401, 802, 1604, 2005, 3203, 4010, 6406, 8020, 10025, 12812, 16015, 20050, 32030, 40100, 64060, 80075, 160150, 320300, 1284403, 2568806, 5137612, 6422015, 12844030, 25688060, 32110075, 64220150, 128440300]

約数ペア:

[(1, 128440300), (2, 64220150), (4, 32110075), (5, 25688060), (10, 12844030), (20, 6422015), (25, 5137612), (50, 2568806), (100, 1284403), (401, 320300), (802, 160150), (1604, 80075), (2005, 64060), (3203, 40100), (4010, 32030), (6406, 20050), (8020, 16015), (10025, 12812)]