131581160

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1607}}^1$

素因数の和:1730

約数の個数: 64

約数和(自身を含む): 312595200

約数和(自身を除く): 181014040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 89, 92, 115, 178, 184, 230, 356, 445, 460, 712, 890, 920, 1607, 1780, 2047, 3214, 3560, 4094, 6428, 8035, 8188, 10235, 12856, 16070, 16376, 20470, 32140, 36961, 40940, 64280, 73922, 81880, 143023, 147844, 184805, 286046, 295688, 369610, 572092, 715115, 739220, 1144184, 1430230, 1478440, 2860460, 3289529, 5720920, 6579058, 13158116, 16447645, 26316232, 32895290, 65790580, 131581160]

約数ペア:

[(1, 131581160), (2, 65790580), (4, 32895290), (5, 26316232), (8, 16447645), (10, 13158116), (20, 6579058), (23, 5720920), (40, 3289529), (46, 2860460), (89, 1478440), (92, 1430230), (115, 1144184), (178, 739220), (184, 715115), (230, 572092), (356, 369610), (445, 295688), (460, 286046), (712, 184805), (890, 147844), (920, 143023), (1607, 81880), (1780, 73922), (2047, 64280), (3214, 40940), (3560, 36961), (4094, 32140), (6428, 20470), (8035, 16376), (8188, 16070), (10235, 12856)]