1289778915

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 2184537600

約数和(自身を除く): 894758685

約数列:

[1, 3, 5, 15, 29, 83, 87, 139, 145, 249, 257, 415, 417, 435, 695, 771, 1245, 1285, 2085, 2407, 3855, 4031, 7221, 7453, 11537, 12035, 12093, 20155, 21331, 22359, 34611, 35723, 36105, 37265, 57685, 60465, 63993, 106655, 107169, 111795, 173055, 178615, 319965, 334573, 535845, 618599, 1003719, 1035967, 1672865, 1855797, 2965009, 3092995, 3107901, 5018595, 5179835, 8895027, 9278985, 14825045, 15539505, 44475135, 85985261, 257955783, 429926305, 1289778915]

約数ペア:

[(1, 1289778915), (3, 429926305), (5, 257955783), (15, 85985261), (29, 44475135), (83, 15539505), (87, 14825045), (139, 9278985), (145, 8895027), (249, 5179835), (257, 5018595), (415, 3107901), (417, 3092995), (435, 2965009), (695, 1855797), (771, 1672865), (1245, 1035967), (1285, 1003719), (2085, 618599), (2407, 535845), (3855, 334573), (4031, 319965), (7221, 178615), (7453, 173055), (11537, 111795), (12035, 107169), (12093, 106655), (20155, 63993), (21331, 60465), (22359, 57685), (34611, 37265), (35723, 36105)]