28415520

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{2819}}^1$

素因数の和:2847

約数の個数: 144

約数和(自身を含む): 110859840

約数和(自身を除く): 82444320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 2819, 3360, 5040, 5638, 8457, 10080, 11276, 14095, 16914, 19733, 22552, 25371, 28190, 33828, 39466, 42285, 45104, 50742, 56380, 59199, 67656, 78932, 84570, 90208, 98665, 101484, 112760, 118398, 126855, 135312, 157864, 169140, 177597, 197330, 202968, 225520, 236796, 253710, 270624, 295995, 315728, 338280, 355194, 394660, 405936, 451040, 473592, 507420, 591990, 631456, 676560, 710388, 789320, 811872, 887985, 947184, 1014840, 1183980, 1353120, 1420776, 1578640, 1775970, 1894368, 2029680, 2367960, 2841552, 3157280, 3551940, 4059360, 4735920, 5683104, 7103880, 9471840, 14207760, 28415520]

約数ペア:

[(1, 28415520), (2, 14207760), (3, 9471840), (4, 7103880), (5, 5683104), (6, 4735920), (7, 4059360), (8, 3551940), (9, 3157280), (10, 2841552), (12, 2367960), (14, 2029680), (15, 1894368), (16, 1775970), (18, 1578640), (20, 1420776), (21, 1353120), (24, 1183980), (28, 1014840), (30, 947184), (32, 887985), (35, 811872), (36, 789320), (40, 710388), (42, 676560), (45, 631456), (48, 591990), (56, 507420), (60, 473592), (63, 451040), (70, 405936), (72, 394660), (80, 355194), (84, 338280), (90, 315728), (96, 295995), (105, 270624), (112, 253710), (120, 236796), (126, 225520), (140, 202968), (144, 197330), (160, 177597), (168, 169140), (180, 157864), (210, 135312), (224, 126855), (240, 118398), (252, 112760), (280, 101484), (288, 98665), (315, 90208), (336, 84570), (360, 78932), (420, 67656), (480, 59199), (504, 56380), (560, 50742), (630, 45104), (672, 42285), (720, 39466), (840, 33828), (1008, 28190), (1120, 25371), (1260, 22552), (1440, 19733), (1680, 16914), (2016, 14095), (2520, 11276), (2819, 10080), (3360, 8457), (5040, 5638)]