31895820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:296

約数の個数: 144

約数和(自身を含む): 107321760

約数和(自身を除く): 75425940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 89, 90, 99, 110, 132, 165, 178, 180, 181, 198, 220, 267, 330, 356, 362, 396, 445, 495, 534, 543, 660, 724, 801, 890, 905, 979, 990, 1068, 1086, 1335, 1602, 1629, 1780, 1810, 1958, 1980, 1991, 2172, 2670, 2715, 2937, 3204, 3258, 3620, 3916, 3982, 4005, 4895, 5340, 5430, 5874, 5973, 6516, 7964, 8010, 8145, 8811, 9790, 9955, 10860, 11748, 11946, 14685, 16020, 16109, 16290, 17622, 17919, 19580, 19910, 23892, 29370, 29865, 32218, 32580, 35244, 35838, 39820, 44055, 48327, 58740, 59730, 64436, 71676, 80545, 88110, 89595, 96654, 119460, 144981, 161090, 176220, 177199, 179190, 193308, 241635, 289962, 322180, 354398, 358380, 483270, 531597, 579924, 708796, 724905, 885995, 966540, 1063194, 1449810, 1594791, 1771990, 2126388, 2657985, 2899620, 3189582, 3543980, 5315970, 6379164, 7973955, 10631940, 15947910, 31895820]

約数ペア:

[(1, 31895820), (2, 15947910), (3, 10631940), (4, 7973955), (5, 6379164), (6, 5315970), (9, 3543980), (10, 3189582), (11, 2899620), (12, 2657985), (15, 2126388), (18, 1771990), (20, 1594791), (22, 1449810), (30, 1063194), (33, 966540), (36, 885995), (44, 724905), (45, 708796), (55, 579924), (60, 531597), (66, 483270), (89, 358380), (90, 354398), (99, 322180), (110, 289962), (132, 241635), (165, 193308), (178, 179190), (180, 177199), (181, 176220), (198, 161090), (220, 144981), (267, 119460), (330, 96654), (356, 89595), (362, 88110), (396, 80545), (445, 71676), (495, 64436), (534, 59730), (543, 58740), (660, 48327), (724, 44055), (801, 39820), (890, 35838), (905, 35244), (979, 32580), (990, 32218), (1068, 29865), (1086, 29370), (1335, 23892), (1602, 19910), (1629, 19580), (1780, 17919), (1810, 17622), (1958, 16290), (1980, 16109), (1991, 16020), (2172, 14685), (2670, 11946), (2715, 11748), (2937, 10860), (3204, 9955), (3258, 9790), (3620, 8811), (3916, 8145), (3982, 8010), (4005, 7964), (4895, 6516), (5340, 5973), (5430, 5874)]