18752240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:131

約数の個数: 120

約数和(自身を含む): 50376240

約数和(自身を除く): 31624000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 73, 76, 80, 95, 104, 130, 146, 152, 169, 190, 208, 247, 260, 292, 304, 338, 365, 380, 494, 520, 584, 676, 730, 760, 845, 949, 988, 1040, 1168, 1235, 1352, 1387, 1460, 1520, 1690, 1898, 1976, 2470, 2704, 2774, 2920, 3211, 3380, 3796, 3952, 4745, 4940, 5548, 5840, 6422, 6760, 6935, 7592, 9490, 9880, 11096, 12337, 12844, 13520, 13870, 15184, 16055, 18031, 18980, 19760, 22192, 24674, 25688, 27740, 32110, 36062, 37960, 49348, 51376, 55480, 61685, 64220, 72124, 75920, 90155, 98696, 110960, 123370, 128440, 144248, 180310, 197392, 234403, 246740, 256880, 288496, 360620, 468806, 493480, 721240, 937612, 986960, 1172015, 1442480, 1875224, 2344030, 3750448, 4688060, 9376120, 18752240]

約数ペア:

[(1, 18752240), (2, 9376120), (4, 4688060), (5, 3750448), (8, 2344030), (10, 1875224), (13, 1442480), (16, 1172015), (19, 986960), (20, 937612), (26, 721240), (38, 493480), (40, 468806), (52, 360620), (65, 288496), (73, 256880), (76, 246740), (80, 234403), (95, 197392), (104, 180310), (130, 144248), (146, 128440), (152, 123370), (169, 110960), (190, 98696), (208, 90155), (247, 75920), (260, 72124), (292, 64220), (304, 61685), (338, 55480), (365, 51376), (380, 49348), (494, 37960), (520, 36062), (584, 32110), (676, 27740), (730, 25688), (760, 24674), (845, 22192), (949, 19760), (988, 18980), (1040, 18031), (1168, 16055), (1235, 15184), (1352, 13870), (1387, 13520), (1460, 12844), (1520, 12337), (1690, 11096), (1898, 9880), (1976, 9490), (2470, 7592), (2704, 6935), (2774, 6760), (2920, 6422), (3211, 5840), (3380, 5548), (3796, 4940), (3952, 4745)]