987333880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2663}}^1$

素因数の和:2741

約数の個数: 128

約数和(自身を含む): 2577899520

約数和(自身を除く): 1590565640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 31, 40, 46, 52, 62, 65, 92, 104, 115, 124, 130, 155, 184, 230, 248, 260, 299, 310, 403, 460, 520, 598, 620, 713, 806, 920, 1196, 1240, 1426, 1495, 1612, 2015, 2392, 2663, 2852, 2990, 3224, 3565, 4030, 5326, 5704, 5980, 7130, 8060, 9269, 10652, 11960, 13315, 14260, 16120, 18538, 21304, 26630, 28520, 34619, 37076, 46345, 53260, 61249, 69238, 74152, 82553, 92690, 106520, 122498, 138476, 165106, 173095, 185380, 244996, 276952, 306245, 330212, 346190, 370760, 412765, 489992, 612490, 660424, 692380, 796237, 825530, 1073189, 1224980, 1384760, 1592474, 1651060, 1898719, 2146378, 2449960, 3184948, 3302120, 3797438, 3981185, 4292756, 5365945, 6369896, 7594876, 7962370, 8585512, 9493595, 10731890, 15189752, 15924740, 18987190, 21463780, 24683347, 31849480, 37974380, 42927560, 49366694, 75948760, 98733388, 123416735, 197466776, 246833470, 493666940, 987333880]

約数ペア:

[(1, 987333880), (2, 493666940), (4, 246833470), (5, 197466776), (8, 123416735), (10, 98733388), (13, 75948760), (20, 49366694), (23, 42927560), (26, 37974380), (31, 31849480), (40, 24683347), (46, 21463780), (52, 18987190), (62, 15924740), (65, 15189752), (92, 10731890), (104, 9493595), (115, 8585512), (124, 7962370), (130, 7594876), (155, 6369896), (184, 5365945), (230, 4292756), (248, 3981185), (260, 3797438), (299, 3302120), (310, 3184948), (403, 2449960), (460, 2146378), (520, 1898719), (598, 1651060), (620, 1592474), (713, 1384760), (806, 1224980), (920, 1073189), (1196, 825530), (1240, 796237), (1426, 692380), (1495, 660424), (1612, 612490), (2015, 489992), (2392, 412765), (2663, 370760), (2852, 346190), (2990, 330212), (3224, 306245), (3565, 276952), (4030, 244996), (5326, 185380), (5704, 173095), (5980, 165106), (7130, 138476), (8060, 122498), (9269, 106520), (10652, 92690), (11960, 82553), (13315, 74152), (14260, 69238), (16120, 61249), (18538, 53260), (21304, 46345), (26630, 37076), (28520, 34619)]