81535440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48533}}^1$

素因数の和:48556

約数の個数: 80

約数和(自身を含む): 288874368

約数和(自身を除く): 207338928

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 48533, 97066, 145599, 194132, 242665, 291198, 339731, 388264, 485330, 582396, 679462, 727995, 776528, 970660, 1019193, 1164792, 1358924, 1455990, 1698655, 1941320, 2038386, 2329584, 2717848, 2911980, 3397310, 3882640, 4076772, 5095965, 5435696, 5823960, 6794620, 8153544, 10191930, 11647920, 13589240, 16307088, 20383860, 27178480, 40767720, 81535440]

約数ペア:

[(1, 81535440), (2, 40767720), (3, 27178480), (4, 20383860), (5, 16307088), (6, 13589240), (7, 11647920), (8, 10191930), (10, 8153544), (12, 6794620), (14, 5823960), (15, 5435696), (16, 5095965), (20, 4076772), (21, 3882640), (24, 3397310), (28, 2911980), (30, 2717848), (35, 2329584), (40, 2038386), (42, 1941320), (48, 1698655), (56, 1455990), (60, 1358924), (70, 1164792), (80, 1019193), (84, 970660), (105, 776528), (112, 727995), (120, 679462), (140, 582396), (168, 485330), (210, 388264), (240, 339731), (280, 291198), (336, 242665), (420, 194132), (560, 145599), (840, 97066), (1680, 48533)]