20199893985

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{67}}^2\times {\mathrm{277}}^1$

素因数の和:460

約数の個数: 108

約数和(自身を含む): 37648129428

約数和(自身を除く): 17448235443

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 67, 95, 171, 201, 277, 285, 335, 361, 603, 831, 855, 1005, 1083, 1273, 1385, 1805, 2493, 3015, 3249, 3819, 4155, 4489, 5263, 5415, 6365, 11457, 12465, 13467, 15789, 16245, 18559, 19095, 22445, 24187, 26315, 40401, 47367, 55677, 57285, 67335, 72561, 78945, 85291, 92795, 99997, 120935, 167031, 202005, 217683, 236835, 255873, 278385, 299991, 352621, 362805, 426455, 499985, 767619, 835155, 899973, 1057863, 1088415, 1243453, 1279365, 1499955, 1620529, 1763105, 3173589, 3730359, 3838095, 4499865, 4861587, 5289315, 6217265, 6699799, 8102645, 11191077, 14584761, 15867945, 18651795, 20099397, 23625607, 24307935, 33498995, 55955385, 60298191, 70876821, 72923805, 100496985, 118128035, 212630463, 301490955, 354384105, 448886533, 1063152315, 1346659599, 2244432665, 4039978797, 6733297995, 20199893985]

約数ペア:

[(1, 20199893985), (3, 6733297995), (5, 4039978797), (9, 2244432665), (15, 1346659599), (19, 1063152315), (45, 448886533), (57, 354384105), (67, 301490955), (95, 212630463), (171, 118128035), (201, 100496985), (277, 72923805), (285, 70876821), (335, 60298191), (361, 55955385), (603, 33498995), (831, 24307935), (855, 23625607), (1005, 20099397), (1083, 18651795), (1273, 15867945), (1385, 14584761), (1805, 11191077), (2493, 8102645), (3015, 6699799), (3249, 6217265), (3819, 5289315), (4155, 4861587), (4489, 4499865), (5263, 3838095), (5415, 3730359), (6365, 3173589), (11457, 1763105), (12465, 1620529), (13467, 1499955), (15789, 1279365), (16245, 1243453), (18559, 1088415), (19095, 1057863), (22445, 899973), (24187, 835155), (26315, 767619), (40401, 499985), (47367, 426455), (55677, 362805), (57285, 352621), (67335, 299991), (72561, 278385), (78945, 255873), (85291, 236835), (92795, 217683), (99997, 202005), (120935, 167031)]