39981320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1697}}^1$

素因数の和:1758

約数の個数: 64

約数和(自身を含む): 97804800

約数和(自身を除く): 57823480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1240, 1697, 2356, 2945, 3394, 4712, 5890, 6788, 8485, 11780, 13576, 16970, 23560, 32243, 33940, 52607, 64486, 67880, 105214, 128972, 161215, 210428, 257944, 263035, 322430, 420856, 526070, 644860, 999533, 1052140, 1289720, 1999066, 2104280, 3998132, 4997665, 7996264, 9995330, 19990660, 39981320]

約数ペア:

[(1, 39981320), (2, 19990660), (4, 9995330), (5, 7996264), (8, 4997665), (10, 3998132), (19, 2104280), (20, 1999066), (31, 1289720), (38, 1052140), (40, 999533), (62, 644860), (76, 526070), (95, 420856), (124, 322430), (152, 263035), (155, 257944), (190, 210428), (248, 161215), (310, 128972), (380, 105214), (589, 67880), (620, 64486), (760, 52607), (1178, 33940), (1240, 32243), (1697, 23560), (2356, 16970), (2945, 13576), (3394, 11780), (4712, 8485), (5890, 6788)]