204049880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1\times {\mathrm{347}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 469925280

約数和(自身を除く): 265875400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 241, 244, 305, 347, 482, 488, 610, 694, 964, 1205, 1220, 1388, 1735, 1928, 2410, 2440, 2776, 3470, 4820, 6940, 9640, 13880, 14701, 21167, 29402, 42334, 58804, 73505, 83627, 84668, 105835, 117608, 147010, 167254, 169336, 211670, 294020, 334508, 418135, 423340, 588040, 669016, 836270, 846680, 1672540, 3345080, 5101247, 10202494, 20404988, 25506235, 40809976, 51012470, 102024940, 204049880]

約数ペア:

[(1, 204049880), (2, 102024940), (4, 51012470), (5, 40809976), (8, 25506235), (10, 20404988), (20, 10202494), (40, 5101247), (61, 3345080), (122, 1672540), (241, 846680), (244, 836270), (305, 669016), (347, 588040), (482, 423340), (488, 418135), (610, 334508), (694, 294020), (964, 211670), (1205, 169336), (1220, 167254), (1388, 147010), (1735, 117608), (1928, 105835), (2410, 84668), (2440, 83627), (2776, 73505), (3470, 58804), (4820, 42334), (6940, 29402), (9640, 21167), (13880, 14701)]