81948720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48779}}^1$

素因数の和:48802

約数の個数: 80

約数和(自身を含む): 290338560

約数和(自身を除く): 208389840

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, 48779, 97558, 146337, 195116, 243895, 292674, 341453, 390232, 487790, 585348, 682906, 731685, 780464, 975580, 1024359, 1170696, 1365812, 1463370, 1707265, 1951160, 2048718, 2341392, 2731624, 2926740, 3414530, 3902320, 4097436, 5121795, 5463248, 5853480, 6829060, 8194872, 10243590, 11706960, 13658120, 16389744, 20487180, 27316240, 40974360, 81948720]

約数ペア:

[(1, 81948720), (2, 40974360), (3, 27316240), (4, 20487180), (5, 16389744), (6, 13658120), (7, 11706960), (8, 10243590), (10, 8194872), (12, 6829060), (14, 5853480), (15, 5463248), (16, 5121795), (20, 4097436), (21, 3902320), (24, 3414530), (28, 2926740), (30, 2731624), (35, 2341392), (40, 2048718), (42, 1951160), (48, 1707265), (56, 1463370), (60, 1365812), (70, 1170696), (80, 1024359), (84, 975580), (105, 780464), (112, 731685), (120, 682906), (140, 585348), (168, 487790), (210, 390232), (240, 341453), (280, 292674), (336, 243895), (420, 195116), (560, 146337), (840, 97558), (1680, 48779)]