66439880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1907}}^1$

素因数の和:1998

約数の個数: 64

約数和(自身を含む): 163477440

約数和(自身を除く): 97037560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 670, 871, 1340, 1742, 1907, 2680, 3484, 3814, 4355, 6968, 7628, 8710, 9535, 15256, 17420, 19070, 24791, 34840, 38140, 49582, 76280, 99164, 123955, 127769, 198328, 247910, 255538, 495820, 511076, 638845, 991640, 1022152, 1277690, 1660997, 2555380, 3321994, 5110760, 6643988, 8304985, 13287976, 16609970, 33219940, 66439880]

約数ペア:

[(1, 66439880), (2, 33219940), (4, 16609970), (5, 13287976), (8, 8304985), (10, 6643988), (13, 5110760), (20, 3321994), (26, 2555380), (40, 1660997), (52, 1277690), (65, 1022152), (67, 991640), (104, 638845), (130, 511076), (134, 495820), (260, 255538), (268, 247910), (335, 198328), (520, 127769), (536, 123955), (670, 99164), (871, 76280), (1340, 49582), (1742, 38140), (1907, 34840), (2680, 24791), (3484, 19070), (3814, 17420), (4355, 15256), (6968, 9535), (7628, 8710)]