80311980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{463}}^1$

素因数の和:548

約数の個数: 144

約数和(自身を含む): 266595840

約数和(自身を除く): 186283860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 59, 60, 70, 84, 98, 105, 118, 140, 147, 177, 196, 210, 236, 245, 294, 295, 354, 413, 420, 463, 490, 588, 590, 708, 735, 826, 885, 926, 980, 1180, 1239, 1389, 1470, 1652, 1770, 1852, 2065, 2315, 2478, 2778, 2891, 2940, 3241, 3540, 4130, 4630, 4956, 5556, 5782, 6195, 6482, 6945, 8260, 8673, 9260, 9723, 11564, 12390, 12964, 13890, 14455, 16205, 17346, 19446, 22687, 24780, 27317, 27780, 28910, 32410, 34692, 38892, 43365, 45374, 48615, 54634, 57820, 64820, 68061, 81951, 86730, 90748, 97230, 109268, 113435, 136122, 136585, 163902, 173460, 191219, 194460, 226870, 272244, 273170, 327804, 340305, 382438, 409755, 453740, 546340, 573657, 680610, 764876, 819510, 956095, 1147314, 1338533, 1361220, 1639020, 1912190, 2294628, 2677066, 2868285, 3824380, 4015599, 5354132, 5736570, 6692665, 8031198, 11473140, 13385330, 16062396, 20077995, 26770660, 40155990, 80311980]

約数ペア:

[(1, 80311980), (2, 40155990), (3, 26770660), (4, 20077995), (5, 16062396), (6, 13385330), (7, 11473140), (10, 8031198), (12, 6692665), (14, 5736570), (15, 5354132), (20, 4015599), (21, 3824380), (28, 2868285), (30, 2677066), (35, 2294628), (42, 1912190), (49, 1639020), (59, 1361220), (60, 1338533), (70, 1147314), (84, 956095), (98, 819510), (105, 764876), (118, 680610), (140, 573657), (147, 546340), (177, 453740), (196, 409755), (210, 382438), (236, 340305), (245, 327804), (294, 273170), (295, 272244), (354, 226870), (413, 194460), (420, 191219), (463, 173460), (490, 163902), (588, 136585), (590, 136122), (708, 113435), (735, 109268), (826, 97230), (885, 90748), (926, 86730), (980, 81951), (1180, 68061), (1239, 64820), (1389, 57820), (1470, 54634), (1652, 48615), (1770, 45374), (1852, 43365), (2065, 38892), (2315, 34692), (2478, 32410), (2778, 28910), (2891, 27780), (2940, 27317), (3241, 24780), (3540, 22687), (4130, 19446), (4630, 17346), (4956, 16205), (5556, 14455), (5782, 13890), (6195, 12964), (6482, 12390), (6945, 11564), (8260, 9723), (8673, 9260)]