1991611520

素因数分解:

$2^7\times 5^1\times {\mathrm{271}}^1\times {\mathrm{11483}}^1$

素因数の和:11773

約数の個数: 64

約数和(自身を含む): 4779181440

約数和(自身を除く): 2787569920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 271, 320, 542, 640, 1084, 1355, 2168, 2710, 4336, 5420, 8672, 10840, 11483, 17344, 21680, 22966, 34688, 43360, 45932, 57415, 86720, 91864, 114830, 173440, 183728, 229660, 367456, 459320, 734912, 918640, 1469824, 1837280, 3111893, 3674560, 6223786, 7349120, 12447572, 15559465, 24895144, 31118930, 49790288, 62237860, 99580576, 124475720, 199161152, 248951440, 398322304, 497902880, 995805760, 1991611520]

約数ペア:

[(1, 1991611520), (2, 995805760), (4, 497902880), (5, 398322304), (8, 248951440), (10, 199161152), (16, 124475720), (20, 99580576), (32, 62237860), (40, 49790288), (64, 31118930), (80, 24895144), (128, 15559465), (160, 12447572), (271, 7349120), (320, 6223786), (542, 3674560), (640, 3111893), (1084, 1837280), (1355, 1469824), (2168, 918640), (2710, 734912), (4336, 459320), (5420, 367456), (8672, 229660), (10840, 183728), (11483, 173440), (17344, 114830), (21680, 91864), (22966, 86720), (34688, 57415), (43360, 45932)]