661212800

素因数分解:

$2^7\times 5^2\times {\mathrm{127}}^1\times {\mathrm{1627}}^1$

素因数の和:1778

約数の個数: 96

約数和(自身を含む): 1647275520

約数和(自身を除く): 986062720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 128, 160, 200, 254, 320, 400, 508, 635, 640, 800, 1016, 1270, 1600, 1627, 2032, 2540, 3175, 3200, 3254, 4064, 5080, 6350, 6508, 8128, 8135, 10160, 12700, 13016, 16256, 16270, 20320, 25400, 26032, 32540, 40640, 40675, 50800, 52064, 65080, 81280, 81350, 101600, 104128, 130160, 162700, 203200, 206629, 208256, 260320, 325400, 406400, 413258, 520640, 650800, 826516, 1033145, 1041280, 1301600, 1653032, 2066290, 2603200, 3306064, 4132580, 5165725, 5206400, 6612128, 8265160, 10331450, 13224256, 16530320, 20662900, 26448512, 33060640, 41325800, 66121280, 82651600, 132242560, 165303200, 330606400, 661212800]

約数ペア:

[(1, 661212800), (2, 330606400), (4, 165303200), (5, 132242560), (8, 82651600), (10, 66121280), (16, 41325800), (20, 33060640), (25, 26448512), (32, 20662900), (40, 16530320), (50, 13224256), (64, 10331450), (80, 8265160), (100, 6612128), (127, 5206400), (128, 5165725), (160, 4132580), (200, 3306064), (254, 2603200), (320, 2066290), (400, 1653032), (508, 1301600), (635, 1041280), (640, 1033145), (800, 826516), (1016, 650800), (1270, 520640), (1600, 413258), (1627, 406400), (2032, 325400), (2540, 260320), (3175, 208256), (3200, 206629), (3254, 203200), (4064, 162700), (5080, 130160), (6350, 104128), (6508, 101600), (8128, 81350), (8135, 81280), (10160, 65080), (12700, 52064), (13016, 50800), (16256, 40675), (16270, 40640), (20320, 32540), (25400, 26032)]