164640

素因数分解:

$2^5\times 3^1\times 5^1\times 7^3$

素因数の和:39

約数の個数: 96

約数和(自身を含む): 604800

約数和(自身を除く): 440160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 343, 392, 420, 480, 490, 560, 588, 672, 686, 735, 784, 840, 980, 1029, 1120, 1176, 1372, 1470, 1568, 1680, 1715, 1960, 2058, 2352, 2744, 2940, 3360, 3430, 3920, 4116, 4704, 5145, 5488, 5880, 6860, 7840, 8232, 10290, 10976, 11760, 13720, 16464, 20580, 23520, 27440, 32928, 41160, 54880, 82320, 164640]

約数ペア:

[(1, 164640), (2, 82320), (3, 54880), (4, 41160), (5, 32928), (6, 27440), (7, 23520), (8, 20580), (10, 16464), (12, 13720), (14, 11760), (15, 10976), (16, 10290), (20, 8232), (21, 7840), (24, 6860), (28, 5880), (30, 5488), (32, 5145), (35, 4704), (40, 4116), (42, 3920), (48, 3430), (49, 3360), (56, 2940), (60, 2744), (70, 2352), (80, 2058), (84, 1960), (96, 1715), (98, 1680), (105, 1568), (112, 1470), (120, 1372), (140, 1176), (147, 1120), (160, 1029), (168, 980), (196, 840), (210, 784), (224, 735), (240, 686), (245, 672), (280, 588), (294, 560), (336, 490), (343, 480), (392, 420)]