78720876

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:285

約数の個数: 144

約数和(自身を含む): 233654400

約数和(自身を除く): 154933524

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 27, 36, 38, 39, 52, 54, 57, 76, 78, 108, 114, 117, 156, 169, 171, 227, 228, 234, 247, 338, 342, 351, 454, 468, 494, 507, 513, 676, 681, 684, 702, 741, 908, 988, 1014, 1026, 1362, 1404, 1482, 1521, 2028, 2043, 2052, 2223, 2724, 2951, 2964, 3042, 3211, 4086, 4313, 4446, 4563, 5902, 6084, 6129, 6422, 6669, 8172, 8626, 8853, 8892, 9126, 9633, 11804, 12258, 12844, 12939, 13338, 17252, 17706, 18252, 19266, 24516, 25878, 26559, 26676, 28899, 35412, 38363, 38532, 38817, 51756, 53118, 56069, 57798, 76726, 77634, 79677, 86697, 106236, 112138, 115089, 115596, 116451, 153452, 155268, 159354, 168207, 173394, 224276, 230178, 232902, 318708, 336414, 345267, 346788, 460356, 465804, 504621, 672828, 690534, 728897, 1009242, 1035801, 1381068, 1457794, 1513863, 2018484, 2071602, 2186691, 2915588, 3027726, 4143204, 4373382, 6055452, 6560073, 8746764, 13120146, 19680219, 26240292, 39360438, 78720876]

約数ペア:

[(1, 78720876), (2, 39360438), (3, 26240292), (4, 19680219), (6, 13120146), (9, 8746764), (12, 6560073), (13, 6055452), (18, 4373382), (19, 4143204), (26, 3027726), (27, 2915588), (36, 2186691), (38, 2071602), (39, 2018484), (52, 1513863), (54, 1457794), (57, 1381068), (76, 1035801), (78, 1009242), (108, 728897), (114, 690534), (117, 672828), (156, 504621), (169, 465804), (171, 460356), (227, 346788), (228, 345267), (234, 336414), (247, 318708), (338, 232902), (342, 230178), (351, 224276), (454, 173394), (468, 168207), (494, 159354), (507, 155268), (513, 153452), (676, 116451), (681, 115596), (684, 115089), (702, 112138), (741, 106236), (908, 86697), (988, 79677), (1014, 77634), (1026, 76726), (1362, 57798), (1404, 56069), (1482, 53118), (1521, 51756), (2028, 38817), (2043, 38532), (2052, 38363), (2223, 35412), (2724, 28899), (2951, 26676), (2964, 26559), (3042, 25878), (3211, 24516), (4086, 19266), (4313, 18252), (4446, 17706), (4563, 17252), (5902, 13338), (6084, 12939), (6129, 12844), (6422, 12258), (6669, 11804), (8172, 9633), (8626, 9126), (8853, 8892)]