55436800

素因数分解:

$2^9\times 5^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 120

約数和(自身を含む): 141566832

約数和(自身を除く): 86130032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 64, 71, 80, 100, 122, 128, 142, 160, 200, 244, 256, 284, 305, 320, 355, 400, 488, 512, 568, 610, 640, 710, 800, 976, 1136, 1220, 1280, 1420, 1525, 1600, 1775, 1952, 2272, 2440, 2560, 2840, 3050, 3200, 3550, 3904, 4331, 4544, 4880, 5680, 6100, 6400, 7100, 7808, 8662, 9088, 9760, 11360, 12200, 12800, 14200, 15616, 17324, 18176, 19520, 21655, 22720, 24400, 28400, 31232, 34648, 36352, 39040, 43310, 45440, 48800, 56800, 69296, 78080, 86620, 90880, 97600, 108275, 113600, 138592, 156160, 173240, 181760, 195200, 216550, 227200, 277184, 346480, 390400, 433100, 454400, 554368, 692960, 780800, 866200, 908800, 1108736, 1385920, 1732400, 2217472, 2771840, 3464800, 5543680, 6929600, 11087360, 13859200, 27718400, 55436800]

約数ペア:

[(1, 55436800), (2, 27718400), (4, 13859200), (5, 11087360), (8, 6929600), (10, 5543680), (16, 3464800), (20, 2771840), (25, 2217472), (32, 1732400), (40, 1385920), (50, 1108736), (61, 908800), (64, 866200), (71, 780800), (80, 692960), (100, 554368), (122, 454400), (128, 433100), (142, 390400), (160, 346480), (200, 277184), (244, 227200), (256, 216550), (284, 195200), (305, 181760), (320, 173240), (355, 156160), (400, 138592), (488, 113600), (512, 108275), (568, 97600), (610, 90880), (640, 86620), (710, 78080), (800, 69296), (976, 56800), (1136, 48800), (1220, 45440), (1280, 43310), (1420, 39040), (1525, 36352), (1600, 34648), (1775, 31232), (1952, 28400), (2272, 24400), (2440, 22720), (2560, 21655), (2840, 19520), (3050, 18176), (3200, 17324), (3550, 15616), (3904, 14200), (4331, 12800), (4544, 12200), (4880, 11360), (5680, 9760), (6100, 9088), (6400, 8662), (7100, 7808)]