2121300240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{285121}}^1$

素因数の和:285168

約数の個数: 80

約数和(自身を含む): 6788184576

約数和(自身を除く): 4666884336

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 285121, 570242, 855363, 1140484, 1425605, 1710726, 2280968, 2851210, 3421452, 4276815, 4561936, 5702420, 6842904, 8553630, 8838751, 11404840, 13685808, 17107260, 17677502, 22809680, 26516253, 34214520, 35355004, 44193755, 53032506, 68429040, 70710008, 88387510, 106065012, 132581265, 141420016, 176775020, 212130024, 265162530, 353550040, 424260048, 530325060, 707100080, 1060650120, 2121300240]

約数ペア:

[(1, 2121300240), (2, 1060650120), (3, 707100080), (4, 530325060), (5, 424260048), (6, 353550040), (8, 265162530), (10, 212130024), (12, 176775020), (15, 141420016), (16, 132581265), (20, 106065012), (24, 88387510), (30, 70710008), (31, 68429040), (40, 53032506), (48, 44193755), (60, 35355004), (62, 34214520), (80, 26516253), (93, 22809680), (120, 17677502), (124, 17107260), (155, 13685808), (186, 11404840), (240, 8838751), (248, 8553630), (310, 6842904), (372, 5702420), (465, 4561936), (496, 4276815), (620, 3421452), (744, 2851210), (930, 2280968), (1240, 1710726), (1488, 1425605), (1860, 1140484), (2480, 855363), (3720, 570242), (7440, 285121)]