161999880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{27551}}^1$

素因数の和:27579

約数の個数: 96

約数和(自身を含む): 565367040

約数和(自身を除く): 403367160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 5880, 27551, 55102, 82653, 110204, 137755, 165306, 192857, 220408, 275510, 330612, 385714, 413265, 551020, 578571, 661224, 771428, 826530, 964285, 1102040, 1157142, 1349999, 1542856, 1653060, 1928570, 2314284, 2699998, 2892855, 3306120, 3857140, 4049997, 4628568, 5399996, 5785710, 6749995, 7714280, 8099994, 10799992, 11571420, 13499990, 16199988, 20249985, 23142840, 26999980, 32399976, 40499970, 53999960, 80999940, 161999880]

約数ペア:

[(1, 161999880), (2, 80999940), (3, 53999960), (4, 40499970), (5, 32399976), (6, 26999980), (7, 23142840), (8, 20249985), (10, 16199988), (12, 13499990), (14, 11571420), (15, 10799992), (20, 8099994), (21, 7714280), (24, 6749995), (28, 5785710), (30, 5399996), (35, 4628568), (40, 4049997), (42, 3857140), (49, 3306120), (56, 2892855), (60, 2699998), (70, 2314284), (84, 1928570), (98, 1653060), (105, 1542856), (120, 1349999), (140, 1157142), (147, 1102040), (168, 964285), (196, 826530), (210, 771428), (245, 661224), (280, 578571), (294, 551020), (392, 413265), (420, 385714), (490, 330612), (588, 275510), (735, 220408), (840, 192857), (980, 165306), (1176, 137755), (1470, 110204), (1960, 82653), (2940, 55102), (5880, 27551)]