15698009420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1\times {\mathrm{25541}}^1$

素因数の和:26018

約数の個数: 48

約数和(自身を含む): 33470236800

約数和(自身を除く): 17772227380

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 389, 395, 778, 790, 1556, 1580, 1945, 3890, 7780, 25541, 30731, 51082, 61462, 102164, 122924, 127705, 153655, 255410, 307310, 510820, 614620, 2017739, 4035478, 8070956, 9935449, 10088695, 19870898, 20177390, 39741796, 40354780, 49677245, 99354490, 198708980, 784900471, 1569800942, 3139601884, 3924502355, 7849004710, 15698009420]

約数ペア:

[(1, 15698009420), (2, 7849004710), (4, 3924502355), (5, 3139601884), (10, 1569800942), (20, 784900471), (79, 198708980), (158, 99354490), (316, 49677245), (389, 40354780), (395, 39741796), (778, 20177390), (790, 19870898), (1556, 10088695), (1580, 9935449), (1945, 8070956), (3890, 4035478), (7780, 2017739), (25541, 614620), (30731, 510820), (51082, 307310), (61462, 255410), (102164, 153655), (122924, 127705)]