1780341745

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 2866824576

約数和(自身を除く): 1086482831

約数列:

[1, 5, 7, 13, 17, 35, 49, 65, 85, 91, 119, 131, 221, 245, 251, 455, 595, 637, 655, 833, 917, 1105, 1255, 1547, 1703, 1757, 2227, 3185, 3263, 4165, 4267, 4585, 6419, 7735, 8515, 8785, 10829, 11135, 11921, 12299, 15589, 16315, 21335, 22841, 28951, 29869, 32095, 32881, 54145, 55471, 59605, 61495, 77945, 83447, 109123, 114205, 144755, 149345, 159887, 164405, 202657, 209083, 230167, 277355, 388297, 417235, 427453, 545615, 558977, 799435, 1013285, 1045415, 1150835, 1418599, 1611169, 1941485, 2137265, 2718079, 2794885, 2992171, 3912839, 7092995, 7266701, 8055845, 13590395, 14960855, 19564195, 20945197, 27389873, 36333505, 50866907, 104725985, 136949365, 254334535, 356068349, 1780341745]

約数ペア:

[(1, 1780341745), (5, 356068349), (7, 254334535), (13, 136949365), (17, 104725985), (35, 50866907), (49, 36333505), (65, 27389873), (85, 20945197), (91, 19564195), (119, 14960855), (131, 13590395), (221, 8055845), (245, 7266701), (251, 7092995), (455, 3912839), (595, 2992171), (637, 2794885), (655, 2718079), (833, 2137265), (917, 1941485), (1105, 1611169), (1255, 1418599), (1547, 1150835), (1703, 1045415), (1757, 1013285), (2227, 799435), (3185, 558977), (3263, 545615), (4165, 427453), (4267, 417235), (4585, 388297), (6419, 277355), (7735, 230167), (8515, 209083), (8785, 202657), (10829, 164405), (11135, 159887), (11921, 149345), (12299, 144755), (15589, 114205), (16315, 109123), (21335, 83447), (22841, 77945), (28951, 61495), (29869, 59605), (32095, 55471), (32881, 54145)]