209438720

素因数分解:

$2^{11}\times 5^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:321

約数の個数: 96

約数和(自身を含む): 509778360

約数和(自身を除く): 300339640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 128, 160, 181, 226, 256, 320, 362, 452, 512, 565, 640, 724, 904, 905, 1024, 1130, 1280, 1448, 1808, 1810, 2048, 2260, 2560, 2896, 3616, 3620, 4520, 5120, 5792, 7232, 7240, 9040, 10240, 11584, 14464, 14480, 18080, 20453, 23168, 28928, 28960, 36160, 40906, 46336, 57856, 57920, 72320, 81812, 92672, 102265, 115712, 115840, 144640, 163624, 185344, 204530, 231424, 231680, 289280, 327248, 370688, 409060, 463360, 578560, 654496, 818120, 926720, 1157120, 1308992, 1636240, 1853440, 2617984, 3272480, 5235968, 6544960, 10471936, 13089920, 20943872, 26179840, 41887744, 52359680, 104719360, 209438720]

約数ペア:

[(1, 209438720), (2, 104719360), (4, 52359680), (5, 41887744), (8, 26179840), (10, 20943872), (16, 13089920), (20, 10471936), (32, 6544960), (40, 5235968), (64, 3272480), (80, 2617984), (113, 1853440), (128, 1636240), (160, 1308992), (181, 1157120), (226, 926720), (256, 818120), (320, 654496), (362, 578560), (452, 463360), (512, 409060), (565, 370688), (640, 327248), (724, 289280), (904, 231680), (905, 231424), (1024, 204530), (1130, 185344), (1280, 163624), (1448, 144640), (1808, 115840), (1810, 115712), (2048, 102265), (2260, 92672), (2560, 81812), (2896, 72320), (3616, 57920), (3620, 57856), (4520, 46336), (5120, 40906), (5792, 36160), (7232, 28960), (7240, 28928), (9040, 23168), (10240, 20453), (11584, 18080), (14464, 14480)]