20456487200

素因数分解:

$2^5\times 5^2\times {\mathrm{547}}^1\times {\mathrm{46747}}^1$

素因数の和:47314

約数の個数: 72

約数和(自身を含む): 50031766512

約数和(自身を除く): 29575279312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 547, 800, 1094, 2188, 2735, 4376, 5470, 8752, 10940, 13675, 17504, 21880, 27350, 43760, 46747, 54700, 87520, 93494, 109400, 186988, 218800, 233735, 373976, 437600, 467470, 747952, 934940, 1168675, 1495904, 1869880, 2337350, 3739760, 4674700, 7479520, 9349400, 18698800, 25570609, 37397600, 51141218, 102282436, 127853045, 204564872, 255706090, 409129744, 511412180, 639265225, 818259488, 1022824360, 1278530450, 2045648720, 2557060900, 4091297440, 5114121800, 10228243600, 20456487200]

約数ペア:

[(1, 20456487200), (2, 10228243600), (4, 5114121800), (5, 4091297440), (8, 2557060900), (10, 2045648720), (16, 1278530450), (20, 1022824360), (25, 818259488), (32, 639265225), (40, 511412180), (50, 409129744), (80, 255706090), (100, 204564872), (160, 127853045), (200, 102282436), (400, 51141218), (547, 37397600), (800, 25570609), (1094, 18698800), (2188, 9349400), (2735, 7479520), (4376, 4674700), (5470, 3739760), (8752, 2337350), (10940, 1869880), (13675, 1495904), (17504, 1168675), (21880, 934940), (27350, 747952), (43760, 467470), (46747, 437600), (54700, 373976), (87520, 233735), (93494, 218800), (109400, 186988)]