20100781620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1303}}^1\times {\mathrm{85703}}^1$

素因数の和:87021

約数の個数: 72

約数和(自身を含む): 61019876736

約数和(自身を除く): 40919095116

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1303, 2606, 3909, 5212, 6515, 7818, 11727, 13030, 15636, 19545, 23454, 26060, 39090, 46908, 58635, 78180, 85703, 117270, 171406, 234540, 257109, 342812, 428515, 514218, 771327, 857030, 1028436, 1285545, 1542654, 1714060, 2571090, 3085308, 3856635, 5142180, 7713270, 15426540, 111671009, 223342018, 335013027, 446684036, 558355045, 670026054, 1005039081, 1116710090, 1340052108, 1675065135, 2010078162, 2233420180, 3350130270, 4020156324, 5025195405, 6700260540, 10050390810, 20100781620]

約数ペア:

[(1, 20100781620), (2, 10050390810), (3, 6700260540), (4, 5025195405), (5, 4020156324), (6, 3350130270), (9, 2233420180), (10, 2010078162), (12, 1675065135), (15, 1340052108), (18, 1116710090), (20, 1005039081), (30, 670026054), (36, 558355045), (45, 446684036), (60, 335013027), (90, 223342018), (180, 111671009), (1303, 15426540), (2606, 7713270), (3909, 5142180), (5212, 3856635), (6515, 3085308), (7818, 2571090), (11727, 1714060), (13030, 1542654), (15636, 1285545), (19545, 1028436), (23454, 857030), (26060, 771327), (39090, 514218), (46908, 428515), (58635, 342812), (78180, 257109), (85703, 234540), (117270, 171406)]