400930688

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1279}}^1$

素因数の和:1403

約数の個数: 64

約数和(自身を含む): 835584000

約数和(自身を除く): 434653312

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 79, 124, 128, 158, 248, 316, 496, 632, 992, 1264, 1279, 1984, 2449, 2528, 2558, 3968, 4898, 5056, 5116, 9796, 10112, 10232, 19592, 20464, 39184, 39649, 40928, 78368, 79298, 81856, 101041, 156736, 158596, 163712, 202082, 313472, 317192, 404164, 634384, 808328, 1268768, 1616656, 2537536, 3132271, 3233312, 5075072, 6264542, 6466624, 12529084, 12933248, 25058168, 50116336, 100232672, 200465344, 400930688]

約数ペア:

[(1, 400930688), (2, 200465344), (4, 100232672), (8, 50116336), (16, 25058168), (31, 12933248), (32, 12529084), (62, 6466624), (64, 6264542), (79, 5075072), (124, 3233312), (128, 3132271), (158, 2537536), (248, 1616656), (316, 1268768), (496, 808328), (632, 634384), (992, 404164), (1264, 317192), (1279, 313472), (1984, 202082), (2449, 163712), (2528, 158596), (2558, 156736), (3968, 101041), (4898, 81856), (5056, 79298), (5116, 78368), (9796, 40928), (10112, 39649), (10232, 39184), (19592, 20464)]