19005377209

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{439}}^1$

素因数の和:572

約数の個数: 80

約数和(自身を含む): 25536156800

約数和(自身を除く): 6530779591

約数列:

[1, 7, 13, 19, 49, 73, 91, 133, 247, 343, 439, 511, 637, 931, 949, 1387, 1729, 2401, 3073, 3577, 4459, 5707, 6517, 6643, 8341, 9709, 12103, 18031, 21511, 25039, 31213, 32047, 39949, 45619, 46501, 58387, 67963, 84721, 108433, 126217, 150577, 175273, 224329, 279643, 325507, 408709, 416611, 475741, 593047, 608893, 759031, 883519, 1054039, 1570303, 1957501, 2278549, 2860963, 2916277, 3330187, 4262251, 5313217, 6184633, 7915609, 10992121, 13702507, 20026741, 20413939, 29835757, 37192519, 43292431, 55409263, 76944847, 142897573, 208850299, 260347633, 387864841, 1000283011, 1461952093, 2715053887, 19005377209]

約数ペア:

[(1, 19005377209), (7, 2715053887), (13, 1461952093), (19, 1000283011), (49, 387864841), (73, 260347633), (91, 208850299), (133, 142897573), (247, 76944847), (343, 55409263), (439, 43292431), (511, 37192519), (637, 29835757), (931, 20413939), (949, 20026741), (1387, 13702507), (1729, 10992121), (2401, 7915609), (3073, 6184633), (3577, 5313217), (4459, 4262251), (5707, 3330187), (6517, 2916277), (6643, 2860963), (8341, 2278549), (9709, 1957501), (12103, 1570303), (18031, 1054039), (21511, 883519), (25039, 759031), (31213, 608893), (32047, 593047), (39949, 475741), (45619, 416611), (46501, 408709), (58387, 325507), (67963, 279643), (84721, 224329), (108433, 175273), (126217, 150577)]