890393205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 1563851520

約数和(自身を除く): 673458315

約数列:

[1, 3, 5, 13, 15, 39, 65, 109, 163, 195, 257, 327, 489, 545, 771, 815, 1285, 1417, 1635, 2119, 2445, 3341, 3855, 4251, 6357, 7085, 10023, 10595, 16705, 17767, 21255, 28013, 31785, 41891, 50115, 53301, 84039, 88835, 125673, 140065, 209455, 230971, 266505, 364169, 420195, 544583, 628365, 692913, 1092507, 1154855, 1633749, 1820845, 2722915, 3464565, 4566119, 5462535, 8168745, 13698357, 22830595, 59359547, 68491785, 178078641, 296797735, 890393205]

約数ペア:

[(1, 890393205), (3, 296797735), (5, 178078641), (13, 68491785), (15, 59359547), (39, 22830595), (65, 13698357), (109, 8168745), (163, 5462535), (195, 4566119), (257, 3464565), (327, 2722915), (489, 1820845), (545, 1633749), (771, 1154855), (815, 1092507), (1285, 692913), (1417, 628365), (1635, 544583), (2119, 420195), (2445, 364169), (3341, 266505), (3855, 230971), (4251, 209455), (6357, 140065), (7085, 125673), (10023, 88835), (10595, 84039), (16705, 53301), (17767, 50115), (21255, 41891), (28013, 31785)]