81651900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:364

約数の個数: 144

約数和(自身を含む): 261233280

約数和(自身を除く): 179581380

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 25, 30, 33, 44, 50, 55, 60, 66, 75, 100, 109, 110, 132, 150, 165, 218, 220, 227, 275, 300, 327, 330, 436, 454, 545, 550, 654, 660, 681, 825, 908, 1090, 1100, 1135, 1199, 1308, 1362, 1635, 1650, 2180, 2270, 2398, 2497, 2724, 2725, 3270, 3300, 3405, 3597, 4540, 4796, 4994, 5450, 5675, 5995, 6540, 6810, 7194, 7491, 8175, 9988, 10900, 11350, 11990, 12485, 13620, 14388, 14982, 16350, 17025, 17985, 22700, 23980, 24743, 24970, 29964, 29975, 32700, 34050, 35970, 37455, 49486, 49940, 59950, 62425, 68100, 71940, 74229, 74910, 89925, 98972, 119900, 123715, 124850, 148458, 149820, 179850, 187275, 247430, 249700, 272173, 296916, 359700, 371145, 374550, 494860, 544346, 618575, 742290, 749100, 816519, 1088692, 1237150, 1360865, 1484580, 1633038, 1855725, 2474300, 2721730, 3266076, 3711450, 4082595, 5443460, 6804325, 7422900, 8165190, 13608650, 16330380, 20412975, 27217300, 40825950, 81651900]

約数ペア:

[(1, 81651900), (2, 40825950), (3, 27217300), (4, 20412975), (5, 16330380), (6, 13608650), (10, 8165190), (11, 7422900), (12, 6804325), (15, 5443460), (20, 4082595), (22, 3711450), (25, 3266076), (30, 2721730), (33, 2474300), (44, 1855725), (50, 1633038), (55, 1484580), (60, 1360865), (66, 1237150), (75, 1088692), (100, 816519), (109, 749100), (110, 742290), (132, 618575), (150, 544346), (165, 494860), (218, 374550), (220, 371145), (227, 359700), (275, 296916), (300, 272173), (327, 249700), (330, 247430), (436, 187275), (454, 179850), (545, 149820), (550, 148458), (654, 124850), (660, 123715), (681, 119900), (825, 98972), (908, 89925), (1090, 74910), (1100, 74229), (1135, 71940), (1199, 68100), (1308, 62425), (1362, 59950), (1635, 49940), (1650, 49486), (2180, 37455), (2270, 35970), (2398, 34050), (2497, 32700), (2724, 29975), (2725, 29964), (3270, 24970), (3300, 24743), (3405, 23980), (3597, 22700), (4540, 17985), (4796, 17025), (4994, 16350), (5450, 14982), (5675, 14388), (5995, 13620), (6540, 12485), (6810, 11990), (7194, 11350), (7491, 10900), (8175, 9988)]