128126680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3989}}^1$

素因数の和:4084

約数の個数: 64

約数和(自身を含む): 318880800

約数和(自身を除く): 190754120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 584, 730, 803, 1460, 1606, 2920, 3212, 3989, 4015, 6424, 7978, 8030, 15956, 16060, 19945, 31912, 32120, 39890, 43879, 79780, 87758, 159560, 175516, 219395, 291197, 351032, 438790, 582394, 877580, 1164788, 1455985, 1755160, 2329576, 2911970, 3203167, 5823940, 6406334, 11647880, 12812668, 16015835, 25625336, 32031670, 64063340, 128126680]

約数ペア:

[(1, 128126680), (2, 64063340), (4, 32031670), (5, 25625336), (8, 16015835), (10, 12812668), (11, 11647880), (20, 6406334), (22, 5823940), (40, 3203167), (44, 2911970), (55, 2329576), (73, 1755160), (88, 1455985), (110, 1164788), (146, 877580), (220, 582394), (292, 438790), (365, 351032), (440, 291197), (584, 219395), (730, 175516), (803, 159560), (1460, 87758), (1606, 79780), (2920, 43879), (3212, 39890), (3989, 32120), (4015, 31912), (6424, 19945), (7978, 16060), (8030, 15956)]