30785720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 81874800

約数和(自身を除く): 51089080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 113, 139, 140, 196, 226, 245, 278, 280, 392, 452, 490, 556, 565, 695, 791, 904, 973, 980, 1112, 1130, 1390, 1582, 1946, 1960, 2260, 2780, 3164, 3892, 3955, 4520, 4865, 5537, 5560, 6328, 6811, 7784, 7910, 9730, 11074, 13622, 15707, 15820, 19460, 22148, 27244, 27685, 31414, 31640, 34055, 38920, 44296, 54488, 55370, 62828, 68110, 78535, 109949, 110740, 125656, 136220, 157070, 219898, 221480, 272440, 314140, 439796, 549745, 628280, 769643, 879592, 1099490, 1539286, 2198980, 3078572, 3848215, 4397960, 6157144, 7696430, 15392860, 30785720]

約数ペア:

[(1, 30785720), (2, 15392860), (4, 7696430), (5, 6157144), (7, 4397960), (8, 3848215), (10, 3078572), (14, 2198980), (20, 1539286), (28, 1099490), (35, 879592), (40, 769643), (49, 628280), (56, 549745), (70, 439796), (98, 314140), (113, 272440), (139, 221480), (140, 219898), (196, 157070), (226, 136220), (245, 125656), (278, 110740), (280, 109949), (392, 78535), (452, 68110), (490, 62828), (556, 55370), (565, 54488), (695, 44296), (791, 38920), (904, 34055), (973, 31640), (980, 31414), (1112, 27685), (1130, 27244), (1390, 22148), (1582, 19460), (1946, 15820), (1960, 15707), (2260, 13622), (2780, 11074), (3164, 9730), (3892, 7910), (3955, 7784), (4520, 6811), (4865, 6328), (5537, 5560)]