787930780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2689}}^1$

素因数の和:2748

約数の個数: 144

約数和(自身を含む): 2163792960

約数和(自身を除く): 1375862180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 49, 52, 65, 70, 91, 92, 98, 115, 130, 140, 161, 182, 196, 230, 245, 260, 299, 322, 364, 455, 460, 490, 598, 637, 644, 805, 910, 980, 1127, 1196, 1274, 1495, 1610, 1820, 2093, 2254, 2548, 2689, 2990, 3185, 3220, 4186, 4508, 5378, 5635, 5980, 6370, 8372, 10465, 10756, 11270, 12740, 13445, 14651, 18823, 20930, 22540, 26890, 29302, 34957, 37646, 41860, 53780, 58604, 61847, 69914, 73255, 75292, 94115, 123694, 131761, 139828, 146510, 174785, 188230, 244699, 247388, 263522, 293020, 309235, 349570, 376460, 432929, 489398, 527044, 618470, 658805, 699140, 804011, 865858, 978796, 1223495, 1236940, 1317610, 1608022, 1712893, 1731716, 2164645, 2446990, 2635220, 3030503, 3216044, 3425786, 4020055, 4329290, 4893980, 5628077, 6061006, 6851572, 8040110, 8564465, 8658580, 11256154, 12122012, 15152515, 16080220, 17128930, 22512308, 28140385, 30305030, 34257860, 39396539, 56280770, 60610060, 78793078, 112561540, 157586156, 196982695, 393965390, 787930780]

約数ペア:

[(1, 787930780), (2, 393965390), (4, 196982695), (5, 157586156), (7, 112561540), (10, 78793078), (13, 60610060), (14, 56280770), (20, 39396539), (23, 34257860), (26, 30305030), (28, 28140385), (35, 22512308), (46, 17128930), (49, 16080220), (52, 15152515), (65, 12122012), (70, 11256154), (91, 8658580), (92, 8564465), (98, 8040110), (115, 6851572), (130, 6061006), (140, 5628077), (161, 4893980), (182, 4329290), (196, 4020055), (230, 3425786), (245, 3216044), (260, 3030503), (299, 2635220), (322, 2446990), (364, 2164645), (455, 1731716), (460, 1712893), (490, 1608022), (598, 1317610), (637, 1236940), (644, 1223495), (805, 978796), (910, 865858), (980, 804011), (1127, 699140), (1196, 658805), (1274, 618470), (1495, 527044), (1610, 489398), (1820, 432929), (2093, 376460), (2254, 349570), (2548, 309235), (2689, 293020), (2990, 263522), (3185, 247388), (3220, 244699), (4186, 188230), (4508, 174785), (5378, 146510), (5635, 139828), (5980, 131761), (6370, 123694), (8372, 94115), (10465, 75292), (10756, 73255), (11270, 69914), (12740, 61847), (13445, 58604), (14651, 53780), (18823, 41860), (20930, 37646), (22540, 34957), (26890, 29302)]