80438540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1$

素因数の和:451

約数の個数: 96

約数和(自身を含む): 209892480

約数和(自身を除く): 129453940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 193, 229, 260, 364, 386, 455, 458, 772, 910, 916, 965, 1145, 1351, 1603, 1820, 1930, 2290, 2509, 2702, 2977, 3206, 3860, 4580, 5018, 5404, 5954, 6412, 6755, 8015, 10036, 11908, 12545, 13510, 14885, 16030, 17563, 20839, 25090, 27020, 29770, 32060, 35126, 41678, 44197, 50180, 59540, 70252, 83356, 87815, 88394, 104195, 175630, 176788, 208390, 220985, 309379, 351260, 416780, 441970, 574561, 618758, 883940, 1149122, 1237516, 1546895, 2298244, 2872805, 3093790, 4021927, 5745610, 6187580, 8043854, 11491220, 16087708, 20109635, 40219270, 80438540]

約数ペア:

[(1, 80438540), (2, 40219270), (4, 20109635), (5, 16087708), (7, 11491220), (10, 8043854), (13, 6187580), (14, 5745610), (20, 4021927), (26, 3093790), (28, 2872805), (35, 2298244), (52, 1546895), (65, 1237516), (70, 1149122), (91, 883940), (130, 618758), (140, 574561), (182, 441970), (193, 416780), (229, 351260), (260, 309379), (364, 220985), (386, 208390), (455, 176788), (458, 175630), (772, 104195), (910, 88394), (916, 87815), (965, 83356), (1145, 70252), (1351, 59540), (1603, 50180), (1820, 44197), (1930, 41678), (2290, 35126), (2509, 32060), (2702, 29770), (2977, 27020), (3206, 25090), (3860, 20839), (4580, 17563), (5018, 16030), (5404, 14885), (5954, 13510), (6412, 12545), (6755, 11908), (8015, 10036)]