2740220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1$

素因数の和:99

約数の個数: 72

約数和(自身を含む): 7060704

約数和(自身を除く): 4320484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 37, 46, 70, 74, 92, 115, 140, 148, 161, 185, 230, 259, 322, 370, 460, 518, 529, 644, 740, 805, 851, 1036, 1058, 1295, 1610, 1702, 2116, 2590, 2645, 3220, 3404, 3703, 4255, 5180, 5290, 5957, 7406, 8510, 10580, 11914, 14812, 17020, 18515, 19573, 23828, 29785, 37030, 39146, 59570, 74060, 78292, 97865, 119140, 137011, 195730, 274022, 391460, 548044, 685055, 1370110, 2740220]

約数ペア:

[(1, 2740220), (2, 1370110), (4, 685055), (5, 548044), (7, 391460), (10, 274022), (14, 195730), (20, 137011), (23, 119140), (28, 97865), (35, 78292), (37, 74060), (46, 59570), (70, 39146), (74, 37030), (92, 29785), (115, 23828), (140, 19573), (148, 18515), (161, 17020), (185, 14812), (230, 11914), (259, 10580), (322, 8510), (370, 7406), (460, 5957), (518, 5290), (529, 5180), (644, 4255), (740, 3703), (805, 3404), (851, 3220), (1036, 2645), (1058, 2590), (1295, 2116), (1610, 1702)]