20492555488

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{223211}}^1$

素因数の和:223391

約数の個数: 48

約数和(自身を含む): 42749562240

約数和(自身を除く): 22257006752

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 151, 152, 302, 304, 604, 608, 1208, 2416, 2869, 4832, 5738, 11476, 22952, 45904, 91808, 223211, 446422, 892844, 1785688, 3571376, 4241009, 7142752, 8482018, 16964036, 33704861, 33928072, 67409722, 67856144, 134819444, 135712288, 269638888, 539277776, 640392359, 1078555552, 1280784718, 2561569436, 5123138872, 10246277744, 20492555488]

約数ペア:

[(1, 20492555488), (2, 10246277744), (4, 5123138872), (8, 2561569436), (16, 1280784718), (19, 1078555552), (32, 640392359), (38, 539277776), (76, 269638888), (151, 135712288), (152, 134819444), (302, 67856144), (304, 67409722), (604, 33928072), (608, 33704861), (1208, 16964036), (2416, 8482018), (2869, 7142752), (4832, 4241009), (5738, 3571376), (11476, 1785688), (22952, 892844), (45904, 446422), (91808, 223211)]