81984840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:292

約数の個数: 192

約数和(自身を含む): 291548160

約数和(自身を除く): 209563320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 73, 84, 98, 105, 120, 140, 146, 147, 168, 191, 196, 210, 219, 245, 280, 292, 294, 365, 382, 392, 420, 438, 490, 511, 573, 584, 588, 730, 735, 764, 840, 876, 955, 980, 1022, 1095, 1146, 1176, 1337, 1460, 1470, 1528, 1533, 1752, 1910, 1960, 2044, 2190, 2292, 2555, 2674, 2865, 2920, 2940, 3066, 3577, 3820, 4011, 4088, 4380, 4584, 5110, 5348, 5730, 5880, 6132, 6685, 7154, 7640, 7665, 8022, 8760, 9359, 10220, 10696, 10731, 11460, 12264, 13370, 13943, 14308, 15330, 16044, 17885, 18718, 20055, 20440, 21462, 22920, 26740, 27886, 28077, 28616, 30660, 32088, 35770, 37436, 40110, 41829, 42924, 46795, 53480, 53655, 55772, 56154, 61320, 69715, 71540, 74872, 80220, 83658, 85848, 93590, 97601, 107310, 111544, 112308, 139430, 140385, 143080, 160440, 167316, 187180, 195202, 209145, 214620, 224616, 278860, 280770, 292803, 334632, 374360, 390404, 418290, 429240, 488005, 557720, 561540, 585606, 683207, 780808, 836580, 976010, 1123080, 1171212, 1366414, 1464015, 1673160, 1952020, 2049621, 2342424, 2732828, 2928030, 3416035, 3904040, 4099242, 5465656, 5856060, 6832070, 8198484, 10248105, 11712120, 13664140, 16396968, 20496210, 27328280, 40992420, 81984840]

約数ペア:

[(1, 81984840), (2, 40992420), (3, 27328280), (4, 20496210), (5, 16396968), (6, 13664140), (7, 11712120), (8, 10248105), (10, 8198484), (12, 6832070), (14, 5856060), (15, 5465656), (20, 4099242), (21, 3904040), (24, 3416035), (28, 2928030), (30, 2732828), (35, 2342424), (40, 2049621), (42, 1952020), (49, 1673160), (56, 1464015), (60, 1366414), (70, 1171212), (73, 1123080), (84, 976010), (98, 836580), (105, 780808), (120, 683207), (140, 585606), (146, 561540), (147, 557720), (168, 488005), (191, 429240), (196, 418290), (210, 390404), (219, 374360), (245, 334632), (280, 292803), (292, 280770), (294, 278860), (365, 224616), (382, 214620), (392, 209145), (420, 195202), (438, 187180), (490, 167316), (511, 160440), (573, 143080), (584, 140385), (588, 139430), (730, 112308), (735, 111544), (764, 107310), (840, 97601), (876, 93590), (955, 85848), (980, 83658), (1022, 80220), (1095, 74872), (1146, 71540), (1176, 69715), (1337, 61320), (1460, 56154), (1470, 55772), (1528, 53655), (1533, 53480), (1752, 46795), (1910, 42924), (1960, 41829), (2044, 40110), (2190, 37436), (2292, 35770), (2555, 32088), (2674, 30660), (2865, 28616), (2920, 28077), (2940, 27886), (3066, 26740), (3577, 22920), (3820, 21462), (4011, 20440), (4088, 20055), (4380, 18718), (4584, 17885), (5110, 16044), (5348, 15330), (5730, 14308), (5880, 13943), (6132, 13370), (6685, 12264), (7154, 11460), (7640, 10731), (7665, 10696), (8022, 10220), (8760, 9359)]