777760880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43991}}^1$

素因数の和:44034

約数の個数: 80

約数和(自身を含む): 2061993024

約数和(自身を除く): 1284232144

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 3536, 4420, 8840, 17680, 43991, 87982, 175964, 219955, 351928, 439910, 571883, 703856, 747847, 879820, 1143766, 1495694, 1759640, 2287532, 2859415, 2991388, 3519280, 3739235, 4575064, 5718830, 5982776, 7478470, 9150128, 9722011, 11437660, 11965552, 14956940, 19444022, 22875320, 29913880, 38888044, 45750640, 48610055, 59827760, 77776088, 97220110, 155552176, 194440220, 388880440, 777760880]

約数ペア:

[(1, 777760880), (2, 388880440), (4, 194440220), (5, 155552176), (8, 97220110), (10, 77776088), (13, 59827760), (16, 48610055), (17, 45750640), (20, 38888044), (26, 29913880), (34, 22875320), (40, 19444022), (52, 14956940), (65, 11965552), (68, 11437660), (80, 9722011), (85, 9150128), (104, 7478470), (130, 5982776), (136, 5718830), (170, 4575064), (208, 3739235), (221, 3519280), (260, 2991388), (272, 2859415), (340, 2287532), (442, 1759640), (520, 1495694), (680, 1143766), (884, 879820), (1040, 747847), (1105, 703856), (1360, 571883), (1768, 439910), (2210, 351928), (3536, 219955), (4420, 175964), (8840, 87982), (17680, 43991)]