127998800

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{4507}}^1$

素因数の和:4596

約数の個数: 60

約数和(自身を含む): 311917536

約数和(自身を除く): 183918736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 142, 200, 284, 355, 400, 568, 710, 1136, 1420, 1775, 2840, 3550, 4507, 5680, 7100, 9014, 14200, 18028, 22535, 28400, 36056, 45070, 72112, 90140, 112675, 180280, 225350, 319997, 360560, 450700, 639994, 901400, 1279988, 1599985, 1802800, 2559976, 3199970, 5119952, 6399940, 7999925, 12799880, 15999850, 25599760, 31999700, 63999400, 127998800]

約数ペア:

[(1, 127998800), (2, 63999400), (4, 31999700), (5, 25599760), (8, 15999850), (10, 12799880), (16, 7999925), (20, 6399940), (25, 5119952), (40, 3199970), (50, 2559976), (71, 1802800), (80, 1599985), (100, 1279988), (142, 901400), (200, 639994), (284, 450700), (355, 360560), (400, 319997), (568, 225350), (710, 180280), (1136, 112675), (1420, 90140), (1775, 72112), (2840, 45070), (3550, 36056), (4507, 28400), (5680, 22535), (7100, 18028), (9014, 14200)]