1664624

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:225

約数の個数: 40

約数和(自身を含む): 3562272

約数和(自身を除く): 1897648

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 151, 208, 212, 302, 424, 604, 689, 848, 1208, 1378, 1963, 2416, 2756, 3926, 5512, 7852, 8003, 11024, 15704, 16006, 31408, 32012, 64024, 104039, 128048, 208078, 416156, 832312, 1664624]

約数ペア:

[(1, 1664624), (2, 832312), (4, 416156), (8, 208078), (13, 128048), (16, 104039), (26, 64024), (52, 32012), (53, 31408), (104, 16006), (106, 15704), (151, 11024), (208, 8003), (212, 7852), (302, 5512), (424, 3926), (604, 2756), (689, 2416), (848, 1963), (1208, 1378)]