81318720

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{12101}}^1$

素因数の和:12128

約数の個数: 112

約数和(自身を含む): 295095168

約数和(自身を除く): 213776448

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, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3360, 6720, 12101, 24202, 36303, 48404, 60505, 72606, 84707, 96808, 121010, 145212, 169414, 181515, 193616, 242020, 254121, 290424, 338828, 363030, 387232, 423535, 484040, 508242, 580848, 677656, 726060, 774464, 847070, 968080, 1016484, 1161696, 1270605, 1355312, 1452120, 1694140, 1936160, 2032968, 2323392, 2541210, 2710624, 2904240, 3388280, 3872320, 4065936, 5082420, 5421248, 5808480, 6776560, 8131872, 10164840, 11616960, 13553120, 16263744, 20329680, 27106240, 40659360, 81318720]

約数ペア:

[(1, 81318720), (2, 40659360), (3, 27106240), (4, 20329680), (5, 16263744), (6, 13553120), (7, 11616960), (8, 10164840), (10, 8131872), (12, 6776560), (14, 5808480), (15, 5421248), (16, 5082420), (20, 4065936), (21, 3872320), (24, 3388280), (28, 2904240), (30, 2710624), (32, 2541210), (35, 2323392), (40, 2032968), (42, 1936160), (48, 1694140), (56, 1452120), (60, 1355312), (64, 1270605), (70, 1161696), (80, 1016484), (84, 968080), (96, 847070), (105, 774464), (112, 726060), (120, 677656), (140, 580848), (160, 508242), (168, 484040), (192, 423535), (210, 387232), (224, 363030), (240, 338828), (280, 290424), (320, 254121), (336, 242020), (420, 193616), (448, 181515), (480, 169414), (560, 145212), (672, 121010), (840, 96808), (960, 84707), (1120, 72606), (1344, 60505), (1680, 48404), (2240, 36303), (3360, 24202), (6720, 12101)]