18815690868

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{40031}}^1$

素因数の和:40205

約数の個数: 96

約数和(自身を含む): 49713979392

約数和(自身を除く): 30898288524

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 131, 138, 156, 262, 276, 299, 393, 524, 598, 786, 897, 1196, 1572, 1703, 1794, 3013, 3406, 3588, 5109, 6026, 6812, 9039, 10218, 12052, 18078, 20436, 36156, 39169, 40031, 78338, 80062, 117507, 120093, 156676, 160124, 235014, 240186, 470028, 480372, 520403, 920713, 1040806, 1561209, 1841426, 2081612, 2762139, 3122418, 3682852, 5244061, 5524278, 6244836, 10488122, 11048556, 11969269, 15732183, 20976244, 23938538, 31464366, 35907807, 47877076, 62928732, 68172793, 71815614, 120613403, 136345586, 143631228, 204518379, 241226806, 272691172, 361840209, 409036758, 482453612, 723680418, 818073516, 1447360836, 1567974239, 3135948478, 4703922717, 6271896956, 9407845434, 18815690868]

約数ペア:

[(1, 18815690868), (2, 9407845434), (3, 6271896956), (4, 4703922717), (6, 3135948478), (12, 1567974239), (13, 1447360836), (23, 818073516), (26, 723680418), (39, 482453612), (46, 409036758), (52, 361840209), (69, 272691172), (78, 241226806), (92, 204518379), (131, 143631228), (138, 136345586), (156, 120613403), (262, 71815614), (276, 68172793), (299, 62928732), (393, 47877076), (524, 35907807), (598, 31464366), (786, 23938538), (897, 20976244), (1196, 15732183), (1572, 11969269), (1703, 11048556), (1794, 10488122), (3013, 6244836), (3406, 5524278), (3588, 5244061), (5109, 3682852), (6026, 3122418), (6812, 2762139), (9039, 2081612), (10218, 1841426), (12052, 1561209), (18078, 1040806), (20436, 920713), (36156, 520403), (39169, 480372), (40031, 470028), (78338, 240186), (80062, 235014), (117507, 160124), (120093, 156676)]