205388800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:214

約数の個数: 132

約数和(自身を含む): 520855056

約数和(自身を除く): 315466256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 113, 128, 142, 160, 200, 226, 256, 284, 320, 355, 400, 452, 512, 565, 568, 640, 710, 800, 904, 1024, 1130, 1136, 1280, 1420, 1600, 1775, 1808, 2260, 2272, 2560, 2825, 2840, 3200, 3550, 3616, 4520, 4544, 5120, 5650, 5680, 6400, 7100, 7232, 8023, 9040, 9088, 11300, 11360, 12800, 14200, 14464, 16046, 18080, 18176, 22600, 22720, 25600, 28400, 28928, 32092, 36160, 36352, 40115, 45200, 45440, 56800, 57856, 64184, 72320, 72704, 80230, 90400, 90880, 113600, 115712, 128368, 144640, 160460, 180800, 181760, 200575, 227200, 256736, 289280, 320920, 361600, 363520, 401150, 454400, 513472, 578560, 641840, 723200, 802300, 908800, 1026944, 1283680, 1446400, 1604600, 1817600, 2053888, 2567360, 2892800, 3209200, 4107776, 5134720, 6418400, 8215552, 10269440, 12836800, 20538880, 25673600, 41077760, 51347200, 102694400, 205388800]

約数ペア:

[(1, 205388800), (2, 102694400), (4, 51347200), (5, 41077760), (8, 25673600), (10, 20538880), (16, 12836800), (20, 10269440), (25, 8215552), (32, 6418400), (40, 5134720), (50, 4107776), (64, 3209200), (71, 2892800), (80, 2567360), (100, 2053888), (113, 1817600), (128, 1604600), (142, 1446400), (160, 1283680), (200, 1026944), (226, 908800), (256, 802300), (284, 723200), (320, 641840), (355, 578560), (400, 513472), (452, 454400), (512, 401150), (565, 363520), (568, 361600), (640, 320920), (710, 289280), (800, 256736), (904, 227200), (1024, 200575), (1130, 181760), (1136, 180800), (1280, 160460), (1420, 144640), (1600, 128368), (1775, 115712), (1808, 113600), (2260, 90880), (2272, 90400), (2560, 80230), (2825, 72704), (2840, 72320), (3200, 64184), (3550, 57856), (3616, 56800), (4520, 45440), (4544, 45200), (5120, 40115), (5650, 36352), (5680, 36160), (6400, 32092), (7100, 28928), (7232, 28400), (8023, 25600), (9040, 22720), (9088, 22600), (11300, 18176), (11360, 18080), (12800, 16046), (14200, 14464)]