1263926380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:379

約数の個数: 96

約数和(自身を含む): 2779297920

約数和(自身を除く): 1515371540

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 89, 137, 142, 146, 178, 274, 284, 292, 355, 356, 365, 445, 548, 685, 710, 730, 890, 1370, 1420, 1460, 1780, 2740, 5183, 6319, 6497, 9727, 10001, 10366, 12193, 12638, 12994, 19454, 20002, 20732, 24386, 25276, 25915, 25988, 31595, 32485, 38908, 40004, 48635, 48772, 50005, 51830, 60965, 63190, 64970, 97270, 100010, 103660, 121930, 126380, 129940, 194540, 200020, 243860, 461287, 710071, 865703, 890089, 922574, 1420142, 1731406, 1780178, 1845148, 2306435, 2840284, 3462812, 3550355, 3560356, 4328515, 4450445, 4612870, 7100710, 8657030, 8900890, 9225740, 14201420, 17314060, 17801780, 63196319, 126392638, 252785276, 315981595, 631963190, 1263926380]

約数ペア:

[(1, 1263926380), (2, 631963190), (4, 315981595), (5, 252785276), (10, 126392638), (20, 63196319), (71, 17801780), (73, 17314060), (89, 14201420), (137, 9225740), (142, 8900890), (146, 8657030), (178, 7100710), (274, 4612870), (284, 4450445), (292, 4328515), (355, 3560356), (356, 3550355), (365, 3462812), (445, 2840284), (548, 2306435), (685, 1845148), (710, 1780178), (730, 1731406), (890, 1420142), (1370, 922574), (1420, 890089), (1460, 865703), (1780, 710071), (2740, 461287), (5183, 243860), (6319, 200020), (6497, 194540), (9727, 129940), (10001, 126380), (10366, 121930), (12193, 103660), (12638, 100010), (12994, 97270), (19454, 64970), (20002, 63190), (20732, 60965), (24386, 51830), (25276, 50005), (25915, 48772), (25988, 48635), (31595, 40004), (32485, 38908)]