399777728

素因数分解:

$2^6\times 7^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:334

約数の個数: 112

約数和(自身を含む): 938174400

約数和(自身を除く): 538396672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 113, 149, 212, 224, 226, 298, 371, 424, 448, 452, 596, 742, 791, 848, 904, 1043, 1192, 1484, 1582, 1696, 1808, 2086, 2384, 2968, 3164, 3392, 3616, 4172, 4768, 5936, 5989, 6328, 7232, 7897, 8344, 9536, 11872, 11978, 12656, 15794, 16688, 16837, 23744, 23956, 25312, 31588, 33376, 33674, 41923, 47912, 50624, 55279, 63176, 66752, 67348, 83846, 95824, 110558, 117859, 126352, 134696, 167692, 191648, 221116, 235718, 252704, 269392, 335384, 383296, 442232, 471436, 505408, 538784, 670768, 884464, 892361, 942872, 1077568, 1341536, 1768928, 1784722, 1885744, 2683072, 3537856, 3569444, 3771488, 6246527, 7138888, 7542976, 12493054, 14277776, 24986108, 28555552, 49972216, 57111104, 99944432, 199888864, 399777728]

約数ペア:

[(1, 399777728), (2, 199888864), (4, 99944432), (7, 57111104), (8, 49972216), (14, 28555552), (16, 24986108), (28, 14277776), (32, 12493054), (53, 7542976), (56, 7138888), (64, 6246527), (106, 3771488), (112, 3569444), (113, 3537856), (149, 2683072), (212, 1885744), (224, 1784722), (226, 1768928), (298, 1341536), (371, 1077568), (424, 942872), (448, 892361), (452, 884464), (596, 670768), (742, 538784), (791, 505408), (848, 471436), (904, 442232), (1043, 383296), (1192, 335384), (1484, 269392), (1582, 252704), (1696, 235718), (1808, 221116), (2086, 191648), (2384, 167692), (2968, 134696), (3164, 126352), (3392, 117859), (3616, 110558), (4172, 95824), (4768, 83846), (5936, 67348), (5989, 66752), (6328, 63176), (7232, 55279), (7897, 50624), (8344, 47912), (9536, 41923), (11872, 33674), (11978, 33376), (12656, 31588), (15794, 25312), (16688, 23956), (16837, 23744)]